Input PPI vs Output PPI: Building a July 2026 Input-to-Output Margin Bridge
By Ravi Sisodia · Reviewed by CA Divyanshu Sengar · Updated 5 October 2026
2-minute summary
- July 2026 Output PPI was 109.9 while the experimental manufacturing Input PPI was 105.9; Input PPI fell from 107.1 in June.
- The July Input PPI and Output PPI belong in a margin dashboard only after matching sector, period and base; subtracting 105.9 from 109.9 is not an accounting margin.
- Experimental Input PPI is especially useful for direction-of-travel analysis, provided its experimental status is kept visible.
Current position
The manufacturing Input PPI fell from 107.1 in June to 105.9 in July while all-items Output PPI stayed at 109.9. That pattern can prompt a margin review, but inventory lags and company mix determine whether any benefit reaches reported gross margin.
Control and evidence map
| # | Control / evidence requirement | |
|---|---|---|
| 1 | A margin bridge should compare changes in relevant input and output indices over consistent periods, not subtract the two index levels as if the difference were profit margin. | |
| 2 | Match the relevant manufacturing input series to the company raw-material basket. | |
| 3 | Compare output-price benchmarks with realised selling prices after discounts and product mix. | |
| 4 | Overlay inventory consumption lag so cheaper inputs are not assumed to hit COGS immediately. | |
| 5 | Keep wages, freight, energy and foreign exchange as explicit non-index bridge items. | |
Worked example
If a manufacturer output benchmark is stable while its relevant input index declines, gross-margin opportunity may improve - but only after testing inventory lag, wages, freight and company-specific product mix.
Common mistakes
- Never subtract index levels to calculate accounting margin.
- Match period, base year and sector scope.
- Experimental Input PPI should be labelled as such.
Frequently asked questions
Can 109.9 minus 105.9 be called margin?
No.
Why label Input PPI experimental?
That is how the official July release describes the manufacturing Input PPI.
What changed from June?
Input PPI fell to 105.9 while all-items Output PPI remained 109.9.
How should finance use the pair?
As external price benchmarks within a full cost-to-revenue margin bridge.
Official sources
- Press Information Bureau / Department for Promotion of Industry and Internal Trade - Provisional WPI, Output PPI and Experimental Input PPI for July 2026; final May 2026 indices (PIB PRID 2299432; 2026-08-14)
- Press Information Bureau / Department for Promotion of Industry and Internal Trade - Provisional Wholesale Price Index for August 2026 (PIB PRID 2309977; 2026-09-14)
Disclaimer
Educational and professional reference only; confirm the current law, rates and the facts of your case before relying on this page.