In 2018 AppStore revenue was $46.6 billion [1]. Apple revenue for 2018 was $265.6 billion [2]
So, your "rounding error" is in reality 17.5% of Apple's entire revenue. It's "only" twice bigger than the entire Mac portion of Apple's business which is $25 billion [3]
So, your "rounding error" is in reality 17.5% of Apple's entire revenue. It's "only" twice bigger than the entire Mac portion of Apple's business which is $25 billion [3]
[1] https://www.cultofmac.com/601492/app-store-google-play-reven...
[2] https://www.statista.com/statistics/265125/total-net-sales-o...
[3] https://notesmatic.com/2018/12/apple-revenue-from-mac/