Systems allocates manufacturing overhead based on machine hours. Each connector should require 1010 machine hours. According to the static budget, SafeflowerSafeflower expected to incur the following: nbsp 500 500 machine hours per month (5050 connectors x 1010 machine hours per connector) $ 7 comma 000$7,000 in variable manufacturing overhead costs $ 5 comma 550$5,550 in fixed manufacturing overhead costs During August, SafeflowerSafeflower actually used 900900 machine hours to make 125125 connectors and spent $ 5 comma 400$5,400 in variable manufacturing costs and $ 9 comma 300$9,300 in fixed manufacturing overhead costs. Calculate the variable overhead efficiency variance for SafeflowerSafeflower.