Set a clean baseline
Record the starting price, selected period, location, opening hours, and the traffic or sales measure you will compare.
Change one value
Keep the other conditions stable and record the same measure again. If hours, stock, staffing, or location also change, label the result as mixed evidence.
Use careful language
Sales can be higher in one test without proving that a price is best. Keep the save conditions and build context with the observation instead of turning it into a game-wide rule.