Those look like my Roxy stats 
The payouts aren’t actual payouts like they withdrew the money in this case, it represents the amount returned on the total wagers. So I bet 10 and get 8 back on the spin or whatever, I have wagered 10 and the payout was 8. I lost 2 overall.
In your example, it looks like your players have lost 300, so you should be owed commission on the 300.