You can view up to 90 days of price history for any SKU with a Sales-Based Automate Pricing rule running on it, so that you can track your price changes and see why the prices changed.
To view your price history, do the following:
Go to Pricing > Automate Pricing , then click on Edit SKUs in the Action column.
Find the SKU for which you would like to see the price history.
In the Action column, click on View pricing history for the SKU.
To see price changes (Response column) and the corresponding events which triggered them (Trigger column) within a specific time-frame, select the start date and end date you want to review in Date range and click on Search.
Note: The Price history page also displays the Next Rule Evaluation Date directly above the date range filter.