You'd have the games listed in the bundle/deals in a column like it's already is.
You'd have the deals price in a column if it's a deals page.
You'd haver the lowest price for keyshop and another column for lowest store price. You put the store logo somewhere in here.
Bonus if you can open the store page if you click on the lowest price, so I don't have to scrounge each individual page for the game to get the overal value of the pack.