Edit: Seems like they don't actually surcharge on Apple device. You can ignore this comment, I'll keep it for posterity.
I believe it's because they surcharge on Apple platform because of that fee, thus they want to show why they have to surcharge.
It's like saying that websites shouldn't show shipping if they got a physical store because at the physical store they didn't show the shipping rate they got there....
It's possible though that the 30% Apple fee could include the transaction fee, I guess they could round it up to 28% but then your comment right now would probably be that the number is incorrect as transaction fees are variable between cards.
I believe it's because they surcharge on Apple platform because of that fee, thus they want to show why they have to surcharge.
It's like saying that websites shouldn't show shipping if they got a physical store because at the physical store they didn't show the shipping rate they got there....
It's possible though that the 30% Apple fee could include the transaction fee, I guess they could round it up to 28% but then your comment right now would probably be that the number is incorrect as transaction fees are variable between cards.