Menu Intelligence
What is menu mix, or PMIX?
Menu mix — commonly called PMIX, for product mix — is the breakdown of what customers actually order: each item's share of units sold or sales dollars. A brand's average check and margin are as much a function of mix as of prices, because customers shifting between items changes profitability even when no price moved and traffic held flat.
Mix is where quiet problems and quiet wins show up first. A margin decline with stable traffic and unchanged prices is almost always mix shift: customers trading down to value items, a promotion pulling orders away from full-price equivalents, or a new item cannibalizing a more profitable one.
Reading mix well requires clean item-level data across every store and channel, normalized so that the same item counts as the same item everywhere. Mix analysis then decomposes check changes into their real causes — price, mix, and attach behavior — instead of leaving 'check was up 2%' unexplained.
Why it matters
Two stores with identical sales can have completely different economics because of mix. Operators who track PMIX see trade-down starting weeks before it reaches the P&L, and can judge new items by what they displaced, not just what they sold.
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