FreeRule 4(13) · Runs in your browser
Prior-price calculator
When you announce a price reduction, the rule asks you to show the prior price: the lowest price of the 30 days before the reduction. Paste your daily prices and this works it out. Nothing you type leaves your device.
ResultPrior price
Enter the announcement date and your daily prices, and the result appears here.
How we read Rule 4(13)
If you announce a reduction, show the prior price next to the reduced one. The prior price is the lowest price you charged in the 30 days before the announcement. The day of the announcement is not counted.
A struck-through MRP isn't automatically an announced reduction. Edge cases, such as flash sales, variants and prices that change within a day, are for your counsel. If a day has two prices, this calculator takes the lower one.
General information, not legal advice. Keep your daily price records: they are the evidence behind the number.