Delivery cost per size: https://kdp.amazon.com/en_US/help/topic/G200634500 https://kdp.amazon.com/en_US/help/topic/G200634500 Basically, they'll charge you 0.

Delivery cost per size: https://kdp.amazon.com/en_US/help/topic/G200634500 https://kdp.amazon.com/en_US/help/topic/G200634500 Basically, they'll charge you 0.15 USD / Mb if you opt for the 70% royalty. Or nothing, if you opt for the 35% royalty. The deal would sort of make sense if it weren't for because they put so little value on the table.