State law limits our total bingo payout for the night to $3500.  When the coverall is $1000, we have to be keep track of how many multiple winner games were rounded up which would cause us to exceed the $3500 for the night.  (For example a $100 game with three winners would pay each winner $34, and the total payout would be $102).  The game just before the coverall would have to be reduced by $2.  When the coverall is only $500 we do not have to worry about the rounded up games pushing us over the $3500 payout limit.