Hello!
I don’t know if this is the deliberate way for Snipcart to work but it seems like a bit of a bug to me. On the products page on the dashboard the “SALES” total for each product appears to be merely “PRICE” multiplied by “NUMBER OF SALES”. This doesn’t take into account any discounts that have been applied to the product. Because of this the “SALES” value can be far more that its actual value.
Cheers!