Compare at price options
When you schedule a price change, you can select what happens to the compare at price of the products for the duration of the schedule. You have two options:
Set the compare at price to be the original price
When the schedule runs and the prices are changed, Auto Schedule will update the compare at price to be the price of the product at the time of running the schedule. This will mean the old price will show on your store and the discount will be clear to your customers:
Leave the compare at price as it is
Auto Schedule will completely ignore the compare at price, leaving it as exactly as it it.