Just my 5 cents)) at math)) Maybe I should have been abstained from commenting)
Analyze The Earning table, countries and file size) If you have files <500MB you have almost no sales
Next, analyze at least the 2 weeks statistics, in combination: download counts, countries, file & sile size. And you will get the very close estimation of earning on PPD
Besides the paid bots to comment here (I'm sure if they read this they wouldn't recognize themselves, 'cause of brain leak), for my peak 100 DL/day, the result is 2$/day, mostly file size >1GB and some >500MB<1GB, mainly traffic from US/Germany/France, other countries are insignificant. You could made a median to transpose the country/region DLs and it would be roughly speaking like 100 DLs/2-2,5$ daily. Exceptions would earn between 2,5-3$/100 DLs.
All statistics provided here till now clearly sustain these conclusions. Make your own calculations and your own decisions. You have enough tools and data for that.
And these comment refers to all file hosts, at least for those which affiliate program is public and is known before applying, and not for the "individual approach", where magic happens ))