So during my Xmas shopping for the skids and my bios I have hit many sales. Many things were purchased for far below retail price. I am trying to make things fair and even (eye roll) so I was making a list of what I got everyone and how much it all cost.

Not sure how to tally the items bought on sale. Do I count the price I actually paid, or do I tally it as the retail price. Example: I found a 50 dollar coat for bs that was 60% off so t only cost me 20 bucks. Do I give him the credit for the sale price and only count 20 towards his total, or do I tally 50 for the coat since that's what its worth and finding the sale was just a benefit to me since I saved myself money?