How does payment through Shop Pay function for merchants?

I couldn’t find any official documentation outlining the fees for using Shop Pay Installments (on the merchant’s end, ie. your end). I did find this forum post though (https://community.shopify.com/topic/1182783) which says that the rates/fees you’re charged varies for each individual store. It looks like it can be anywhere from 5% - 8%. It should tell you within your payments settings, once it’s set up.