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The Wholesale Price Index (WPI) was revised on 22 October 2020. See here for further information  
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Wholesale Price Index

September 2020

 Price index (Year ‘15=100)% monthly change% annual change
Jul 202085.8-0.9%-10.6%
Aug 202084.5-1.5%-12.4%
Sep 202084.90.5%-12.4%

Annual Manufacturing Prices decrease by 12.4% in September

Figure 1 - Manufacturing Industries Output Price Index
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Monthly factory gate prices increased by 0.5% in September 2020. This compares to an increase of 0.4% for September of last year. The annual percentage change showed a decrease of 12.4% in September 2020, similar to the decrease in the year to August 2020.  See graph across and table 1.

In the month, the price index for export sales increased by 0.5%, while the index for home sales increased by 0.3%. In the year there was a decrease of 12.9% in the price index for export sales (this can be influenced by currency fluctuations) and a decrease of 1.4% in respect of the price index for home sales.  See table 2 and Figure 2.

Jan 2015100.296.8
Feb 201599.698.8
Mar 201599.9101.1
Apr 201599.8102.6
May 2015100100.2
Jun 201599.999.8
Jul 201510099.8
Aug 2015100.3100.2
Sep 2015100.298.9
Oct 201510096.6
Nov 2015100102.8
Dec 2015100102.5
Jan 2016100100.2
Feb 201699.199.9
Mar 201699.598.9
Apr 2016100.898.1
May 2016100.998.9
Jun 201610197.7
Jul 201610198.1
Aug 2016100.198.7
Sep 201610096.4
Oct 201610097.6
Nov 2016100.1101.5
Dec 2016100.1102.4
Jan 2017100.4100.8
Feb 201799.2100.1
Mar 201799.5102.6
Apr 201799.5103.7
May 201799.4103.7
Jun 201799.5100.3
Jul 201799.699.2
Aug 201799.597.9
Sep 201799.897.2
Oct 201799.790.2
Nov 201797.791.9
Dec 201797.797.5
Jan 20189896.4
Feb 201898.195.7
Mar 201898.496.1
Apr 201898.895.6
May 201898.697.7
Jun 201898.999
Jul 20189998
Aug 20189997.6
Sep 201899.497.5
Oct 201899.492
Nov 201899.494.9
Dec 201899.795.2
Jan 2019100.696.4
Feb 2019101.395.6
Mar 2019101.296.4
Apr 2019101.196.5
May 2019101.196.8
Jun 2019101.196.4
Jul 2019101.395.8
Aug 2019101.496.3
Sep 2019101.396.8
Oct 2019101.189.8
Nov 2019101.393
Dec 201910193
Jan 202099.792.1
Feb 202010094.4
Mar 2020100.191.1
Apr 202099.788.2
May 202099.687.5
Jun 202099.786.1
Jul 202099.785.2
Aug 202099.683.9
Sep 202099.984.3
Table 1 Manufacturing Industries Output Price Indices (excluding VAT)
 Base: Year 2015 as 100
PeriodManufacturing Industries Output Price IndexManufacturing Industries Output Price Index (Home Sales)Manufacturing Industries Output Price Index (Export Sales)
Price Index% Change on preceding periodAnnual % changePrice Index% Change on Preceding PeriodPrice Index% Change on Preceding Period
2015Quarter 199.0--99.9-98.9-
 Quarter 2100.81.8-99.90.0100.92.0
 Quarter 399.6-1.2-100.20.399.6-1.3
 Quarter 4100.61.0-100.0-0.2100.61.0
2016Quarter 199.6-1.00.699.5-0.599.7-0.9
 Quarter 298.4-1.2-2.4100.91.498.2-1.5
 Quarter 397.8-0.6-1.8100.4-0.597.7-0.5
 Quarter 4100.52.8-0.1100.1-0.3100.52.9
2017Quarter 1101.10.61.599.7-0.4101.20.7
 Quarter 2102.
 Quarter 398.2-4.10.499.60.198.1-4.4
 Quarter 493.4-4.9-7.198.4-1.293.2-5.0
2018Quarter 196.12.9-4.998.2-
 Quarter 297.51.5-4.898.80.697.41.4
 Quarter 397.80.3-0.499.10.397.70.3
 Quarter 494.2-3.70.999.50.494.0-3.8
 Quarter 296.80.5-0.7101.
 Quarter 396.5-0.3-1.3101.30.296.3-0.3
 Quarter 492.3-4.4-2.0101.1-0.291.9-4.6
2020Quarter 192.80.5-3.699.9-
 Quarter 287.8-5.4-9.399.7-0.287.3-5.6
 Quarter 385.1-3.1-11.899.70.084.5-3.2
 April 95.8-0.4-7.498.80.495.6-0.5
Table 2 Industrial Producer Price Indices (excluding VAT)
Base: Year 2015 = 100
Industrial sector         IndexMonthly % ChangeAnnual % Change
NACE code1
Aug 2020Sep 2020Jul 2020Aug 2020Sep 2020Sep 2020
Food Products1096.495.8-1.3-1.9-0.6-6.4
       Meat and meat products10194.494.00.41.4-0.41.0
       Fish and fish products102126.7126.7-0.4-0.90.0-5.9
       Fruit and vegetables10396.396.
       Vegetable and animal oils and fats10493.191.5-0.90.3-1.7-1.5
       Dairy products105103.5104.2-
       Grain milling, starches and animal feeds106,109102.8102.70.0-0.1-0.1-1.0
       Bakery and farinaceous products10793.993.5-0.20.1-0.4-0.7
       Other food products10894.393.4-1.5-4.8-1.0-8.6
Tobacco Products12******
Wearing apparel14109.3109.
Leather and leather products (incl. footwear); dressing and dyeing of fur15101.5101.
Wood and wood products16103.7103.5-0.20.1-0.20.1
Pulp, paper and paper products1792.992.9-
Printing and reproduction of recorded media1895.895.2-0.30.4-0.6-0.8
Coke and refined petroleum products19******
Chemicals and chemical products2098.398.3-0.1-0.10.0-0.2
Basic pharmaceutical products and pharmaceutical preparations21******
Rubber and plastic products2295.895.3-0.70.1-0.5-2.0
Other non-metallic mineral products23103.1102.0-0.50.7-1.1-0.6
Basic metals2492.689.9-0.3-0.2-2.9-4.7
Fabricated metal products, except machinery and equipment2599.498.6-0.40.4-0.8-0.9
Computer, electronic and optical products26******
Electrical equipment2785.485.0-0.2-0.1-0.5-1.4
Machinery and equipment n.e.c.28******
Motor vehicles, trailers and semi-trailers29104.8104.8-
Other transport equipment30110.4110.6-
Furniture 31109.0109.
Other Manufacturing32******
Repair and Installation of machinery and equipment33******
Mining and quarrying05-0996.898.
Total transportable goods industries 84.685.0-1.0-1.40.5-12.4
Food products, Beverages and Tobacco Products10-1296.295.6-1.3-1.8-0.6-6.3
Manufacturing industries excluding Food Products  82.883.3-0.9-1.30.6-13.3
Manufacturing Industries excluding Food Products, Beverages and Tobacco Products 82.683.2-0.9-1.40.7-13.4
Intermediate goods industries (except energy) ******
Capital goods industries ******
Durable consumer goods industries ******
Non-durable consumer goods industries ******
Manufacturing industries (home sales)2 99.699.90.0-0.10.3-1.4
Manufacturing industries (export sales)2 83.984.3-1.0-1.50.5-12.9
Total manufacturing industries2 84.584.9-0.9-1.50.5-12.4
1 Nace Rev. 2 Statistical classification of economic activities in the European Community.
2 Excludes Mining and quarrying.
* Data suppressed for confidentiality reasons.
Table 2A Contribution to changes in the Manufacturing Output Price Index, September 2020 (Table 2)
Industrial sectorNACE code 1Contribution to overall % change2
One monthTwelve months
Food Products10-0.09-0.91
       Meat and meat products101-0.020.03
       Fish and fish products1020.00-0.02
       Fruit and vegetables1030.000.00
       Vegetable and animal oils and fats1040.000.00
       Dairy products1050.01-0.24
       Grain milling, starches and animal feeds106,1090.00-0.01
       Bakery and farinaceous products1070.000.00
       Other food products108-0.08-0.67
Tobacco Products12**
Wearing apparel140.000.00
Leather and leather products (incl. footwear); dressing and dyeing of fur150.000.00
Wood and wood products160.000.00
Pulp, paper and paper products170.000.00
Printing and reproduction of recorded media180.000.00
Coke and refined petroleum products19**
Chemicals and chemical products200.00-0.01
Basic pharmaceutical products and pharmaceutical preparations21**
Rubber and plastic products220.00-0.01
Other non-metallic mineral products23-0.010.00
Basic metals24-0.01-0.02
Fabricated metal products, except Machinery and equipment25-0.01-0.01
Computer, electronic and optical products26**
Electrical equipment270.00-0.01
Machinery and Equipment n.e.c.28**
Motor vehicles, trailers and semi-trailers290.000.00
Other transport equipment300.000.00
Furniture 310.000.00
Other Manufacturing32**
Repair and Installation of machinery and equipment33**
Mining and quarrying05-090.01-0.01
1 Nace Rev. 2 Statistical classification of economic activities in the European Community.
2 See Background Notes.
* Data suppressed for confidentiality reasons
Table 3 Detailed Wholesale Price Indices (excluding VAT) for Building and Construction Materials
Base: Year 2015 = 100
MaterialsIndexMonthly % ChangeAnnual % Change
Aug 2020Sep 2020Jul 2020Aug 2020Sep 2020Sep 2020
Stone, sand and gravel105.3106.60.0-
       Sand and gravel115.3118.
Ready mixed mortar and concrete106.4106.40.3-
Concrete blocks and bricks104.6104.5-0.1-0.6-0.11.0
Other concrete products105.0105.
       Precast concrete112.3112.
       Other concrete products (Excluding precast concrete)104.4104.
Structural steel and reinforcing metal113.8113.
       Structural steel120.7120.7-
              Fabricated metal123.5123.40.00.0-0.10.1
              Other Structural steel97.799.1-
       Reinforcing metal103.3103.
       Other steel products104.9104.
Rough timber (including plain sawn)107.1107.
Other timber105.2105.
       Windows and doors107.2107.
Bituminous macadam, asphalt and bituminous emulsions98.7102.3-
       Bituminous macadam and asphalt98.9102.6-
       Bituminous emulsions94.
Electrical fittings104.2104.
       Lighting equipment107.3107.
       Protection & communication equipment 103.2103.
All other materials105.1105.
       Plumbing materials incl. sanitary ware104.7104.90.0-
       HVAC (heating & ventilation equipment) 104.5103.60.00.0-0.9-0.9
       Insulating materials102.6102.
       Pipes and fittings106.7106.
       Paints, oils and varnishes121.3121.
       All other metal fittings109.1109.
       All other products103.4103.8-
All materials106.2106.40.1-
Table 4 Capital Goods Price Indices (excluding VAT)
Base: Year 2015 = 100
Capital goodsIndexMonthly % ChangeAnnual % Change
Aug 2020Sep 2020Jul 2020Aug 2020Sep 2020Sep 2020
Transportable capital for use in      
        of which:      
              Private vehicles1102.1101.80.10.0-0.3-0.3
              Commercial vehicles104.9105.
Agriculture and industry106.0106.
Other sectors106.2106.
Total transportable capital106.1106.
Building and construction109.4109.50.1-
(i.e. materials and wages)      
All capital goods109.0109.10.1-
1 Private vehicles are inclusive of VAT which is non-deductible for industry and agriculture.
Table 5 Wholesale Price Indices (excluding VAT) for Energy Products
(i.e. Fuels purchased by Manufacturing Industry)
Base: Year 2015 = 100
Energy fuelsIndexMonthly % ChangeAnnual % Change
Aug 2020Sep 2020Jul 2020Aug 2020Sep 2020Sep 2020
Gas oil (other than autodiesel)91.687.41.41.9-4.6-17.1
Fuel oil95.392.81.9-0.5-2.6-15.0
Petroleum fuels195.392.61.70.2-2.8-14.0
Energy products77.185.48.912.410.8-5.2
1 Energy products excluding electricity.

Background Notes

Wholesale Price Index        

The term Industrial Producer Price Index refers to a family of indices that measure the average change over time in the selling prices received by domestic producers of goods and services. The other three wholesale price index series incorporate imported and home produced goods sold by manufacturers and wholesale outlets.


The output price indices for sectors of Manufacturing Industries cover both home sales and export sales.  The Indices for Total transportable goods industries; Food, drink and tobacco; Manufacturing industries excluding food; Manufacturing industries excluding food, drink and tobacco; Intermediate goods industries (except energy); Capital goods industries; Durable consumer goods industries; Non-durable consumer goods industries; Manufacturing industries (home sales); Manufacturing industries (export sales) and Total manufacturing industries are all calculated on a net sector basis, i.e. the weights used to combine the sectoral indices (including those for sectors not distinguished in Table 2) exclude sales to other sectors of Manufacturing Industry.

Table 2A gives the percentage contribution of each sector (including those not published on Table 2) to the overall percentage change on Table 2. The percentage contributions on Table 2A may not add up to the Total Manufacturing industries percentage change on Table 2 due to rounding and other adjustments for presentational purposes.  In comparing these contributions against these percentage changes in indices presented on Table 2 caution should be exercised as the former is calculated on a net sector basis.

The Building Materials, Capital Goods and Energy Products indices (Tables 3, 4 and 5) cover home production and imports of these commodities.  Table 3, the Wholesale Price Index for Building and Construction Materials, provides only a general indication of price trends in that sector.  Actual transaction prices are collected for materials purchased by construction and civil engineering firms. The price indices reflect an ‘average’ over a mixture of products from many companies throughout the country.  They also reflect prices for both long-term and short-term contracts and for high and low volume civil engineering works. It should be noted that long-term, high volume fixed contracts for major works might dilute in the short-term the impact of emerging price changes on the index.  Furthermore, industry sources have confirmed that price increases notified by companies may not always be achieved in practice following negotiations. Much depends on the prevailing market conditions. Therefore changes over the short-term in the indices derived from these transaction prices will not always coincide with price changes notified by companies.


All indices in the series are based on prices at the 15th of the month. Quarterly and annual indices are simple averages of the corresponding monthly indices.

Prices used in the compilation of the indices are:

  • excluding delivery charges itemised on the invoice separately
  • after discounts or surcharges are applied
  • before addition of direct subsidies
  • exclusive of VAT (except for private vehicles used in Table 4)
  • inclusive of excise duty

Every effort is made by the Wholesale Prices Section to collect all prices for the relevant month. Where this is not possible late prices are included in the following month’s calculations.


This Wholesale Price Index series is compiled to base 2015 = 100. A methodological description of this updated series is given in the Wholesale Price Index Introduction to Series 2015=100 (1) (PDF 468KB)

Calculating percentage changes in the index

The movement of the output price indices is expressed as percentage change, rather than a change in index points, because index point changes are affected by the level of the index in relation to its base period, whereas percentage changes are not.

The example below illustrates the computation of a percentage change:

Percentage change calculation  
Current index  105.6
Less previous index  102.1
Equals in index points   3.5
Divided by the previous index   102.1
Equals   0.0343
Results multiplied by 100   0.0343 x 100
Equals percentage change   3.4

Alternatively, users may calculate a percentage change by dividing the current index by the previous index, multiplying by 100 and then subtracting 100.

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