Requirement 1. Compute the variable manufacturing overhead variances. What do each of these variances tell management? (Enter the favorable (F) or unfavorable (U)) Begin by computing the variable manufacturing overhead rate variance. First determine the formula for the rate variance, then compute th Variable overhead )rate variance Now compute the variable manufacturing overhead efficiency variance. First determine the formula for the efficiency variance, then comp Variable overhead )efficiency variance x ( What do each of these variances tell management