# Price Versus Volume Profit Bridge Check

Split a profit change into price and volume parts before explaining it.

## Scope
Preparation and review only. No account action or professional decision.

## Inputs
Two periods of price, units sold and variable cost.

## Workflow
1. Compute profit for each period.
2. Recompute holding price constant, then holding volume constant.
3. Attribute the change to price and volume parts.
4. Return the bridge without a pricing decision.

## Output contract
period | price | units | variable | profit | price_part | volume_part | decision_unproved

## Fictional acceptance test
Fictional period one: price 50, 100 units, variable 30, profit 2,000. Period two: price 48, 110 units, profit 1,980. Volume added 180, price removed 200; crediting growth for the change misstates the bridge.

## Review gates
Keep original values, source IDs and version dates. Unknown facts stay held. Use qualified review for hiring, legal and accounting conclusions. No send, share, sign-in, scheduling, ledger change or payment. Fictional contract review is not a live account compatibility test.

## Method source
https://corporatefinanceinstitute.com/resources/accounting/profit-margin/

Checked October 17, 2026. Oct17 live AIS Search Console (sc-domain property, tej@groweasy.ai, Saturday audit): Oct 9-15 complete week 22 clicks, 937 impressions, 2.3% CTR, position 10.6, day-row verified. Top queries: Muse India 125i (3-month), Planable/Claude social agent 45i, marketing Copilot 37i, Planable/ChatGPT 24i, investor agents 19i, Copilot investment-committee 14i, cash flow forecasting 13i, campaign brief 12i. Google Trends verified Oct 17: muse glimmer/spark rising. Site impressions are query leads, not monthly volumes; exact topic volume is unmeasured.