Pricing & Elasticity
What is price elasticity for a restaurant?
Price elasticity measures how much demand for a menu item changes when its price changes. An elastic item loses meaningful volume when its price goes up; an inelastic item holds its volume, so a price increase converts almost entirely into revenue. In restaurants, elasticity is not one number: the same item can be elastic in one store and inelastic in another, which is why item-level, store-level measurement matters.
Formally, elasticity is the percentage change in quantity sold divided by the percentage change in price. An elasticity of -0.3 means a 10% price increase costs about 3% of volume, a trade most operators would take. An elasticity of -1.5 means the same increase costs 15% of volume and likely loses revenue. The practical question for a menu is which items sit on which side of that line.
Restaurant elasticity can only be measured on items whose prices have actually moved. That is why a clean, item-level price history from POS data is the raw material: the model reads how real customers in each store responded to real price changes, rather than borrowing industry curves or survey estimates.
Why it matters
Without elasticity, price increases default to across-the-board percentages, which over-price the sensitive items and under-price the strong ones. With item-and-store-level elasticity, an operator can hit the same check target with a fraction of the customer impact by concentrating increases where demand barely moves.
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