Algorithm Chart for Tournament

Can some one make me a CHART that shows 90% payback for paying out every 1 in 5 people with a $ 40.00 entry fee that goes up to 60 people? so payouts would be any where from 1 payout for 5 entries 2 payouts for 10 entries 3 payouts for 15 entries etc… so basically for paying up to 12 places ? Please help my brain is fried!!