Hello! I sell my software via Plimus, it's cost is $20 (more details in PMB).
If you sell 100 copies per month, I'll pay 50% = $1000
If you sell 500 copies per month, I'll pay 60% = $6000
Purchases must be real, I'll pay after 30-days (as Plimus).
60% is VERY high, I do it because my software is new.
Happy bidding!