We record what every restaurant charges, every day, and keep the differences. Pick any two dates and this shows what moved between them — which items, at how many restaurants, and by how much. The dates are in the address bar, so a window worth showing someone can be sent to them.
This page covers the chains we have archived on two different days (Burger King, Chick-fil-A, Chipotle, Domino's, McDonald's, Papa John's, Popeyes, Taco Bell, and Wendy's). The price map shows every chain we price restaurant by restaurant (Burger King, Chick-fil-A, Chipotle, Domino's, McDonald's, Papa John's, Popeyes, Taco Bell, and Wendy's). 5 more chains appear in nutrition rankings only — they have no prices to move.
Only restaurants we priced on both of the dates you pick count towards a change. That matters more than it sounds: the day our McDonald’s coverage went from 3,800 restaurants to 12,203, the median price of 226 items moved — not because McDonald’s changed anything, but because we were suddenly looking at different restaurants. Measured against the same restaurants only, ten items moved. It is the same reason retailers report same-store sales.
“Typical move” is the median change among the restaurants that changed, and it is only shown where at least 8 of them did. The share is of restaurants we hold a price for on both dates, not of the chain.
History starts 2026-09-01, the day this archive began. It cannot be backfilled: a price nobody wrote down that morning is gone. That is why the collection runs whether or not anyone is reading.
The date picker on this page needs JavaScript. These pages do not: each one is a dated story with the item, the old and new price, and how many restaurants moved, so a crawler or a citation can open it.