the percentage Apple takes off the top. If your app or subscription costs $1, you receive $0.70 for each sale. As mentioned, for subscriptions, the second year Apple only takes 15%, so you receive $0.85 per subscription dollar.

It's even more complicated, if your company makes less than $1mm in revenue, Apple discounts their first year take to 15% also. This makes work for the MBAs at startups to make somewhat complicated revenue forecast spreadsheets.

thank you