Why are the prices for the Movie Bundles of Harry Potter and Fantastic Beasts so nonsensical?

First of all I should add my App-Settings are in German using the €, so this might only be an issue for this currency. To sum it up - Someone clearly didn’t! Or is this intentional? Am I paying for the convenience of only having to press buy one time, instead of being persuaded to buying the huge bundle for a quantity discount (like on the after-mentioned Transformers Bundle)?

The Price for the Transformers Movie Bundle is correct again, although it’s a little misleading to make a Movie Bundle with only one other Movie from an already existing Bundle, just to make the big Bundle seam like a better deal than it is. (don’t get me wrong at least this one has a discount:-)