The amount we pay out for each night is determined by the size of the crowd so that we make sure we take in enough money from paper sales to cover the total bingo payouts.  If we have fewer than 160 players, the majority of the games pay out $25 less than when the headcount is above 160.  To make sure we don't lose money on bingo payouts, our house rule is that we only pay a $1000 coverall when the headcount is at least 175.