Knowledge Base

Food Cost Variance Analysis — Track Price Changes & Protect MarginsStep-by-step guide

How to track supplier price changes over time and use food cost variance analysis to protect restaurant margins.

When to use this guide

Use this guide when food costs are rising and your team needs better visibility into which prices changed and why.

  • You want to track supplier price trends for your highest-cost items.
  • You need to compare pricing across vendors for the same products.
  • You are building a routine to catch price increases before they erode margins.

Before you start

Ensure invoice data is current and item costs are linked to live pricing.

  • Purchasing lead: confirms recent invoices are imported and matched correctly.
  • Operations manager: defines which items and categories to monitor most closely.
  • Finance lead: sets acceptable variance thresholds for escalation.

Step-by-step workflow

Build a price monitoring routine that catches variance early.

  • Open the price variance report and filter to your highest-cost item categories.
  • Review which items had the largest price increases over the selected period.
  • Compare current pricing against the same period last month or last quarter.
  • Identify whether increases are vendor-specific or market-wide by checking multiple suppliers.
  • Escalate items above your variance threshold to the purchasing lead for vendor discussion.
  • Document agreed price changes and update your cost assumptions for recipe and menu reviews.

What good looks like

Price changes are caught early and margin impact is understood before period close.

  • Teams know which items moved in price and by how much every week.
  • Vendor-specific increases are flagged and discussed before the next order cycle.
  • Menu and recipe cost assumptions stay current instead of lagging behind reality.

Common mistakes and fixes

Price tracking loses value when it is reactive instead of routine.

  • Mistake: reviewing prices only at period end. Fix: schedule weekly price variance checks for top categories.
  • Mistake: looking at averages instead of item-level detail. Fix: drill into the specific items driving the variance.
  • Mistake: no follow-up with vendors. Fix: use variance data to start pricing conversations before the next order.

Related guides

Keep going with adjacent workflows your team usually sets up next.