AB Lid has a petty cash account that is set at $8,400. In month 1 the month end replenishment is for 20% of the fund. In month 2 the month end replenishment is for 25% of the fund and in month 3 the fund size is increased by $3,800 and the replenishment is for 22% of the fund level. Required: How much is the highest monthly expense from replenishment? S