Variable Overhead Spending and Efficiency Varlanees, Columnar and Formula Approaches Aretha Company provided the following information: Standard variable overhead rate (SVOR) per direct labor hour $4.70 Actual variable overhead costs $335,750 Actual direct labor hours worked (AM) 69,200 Actual production in units 14,000 Standard hours (SH) allowed for actual units produced 70,000 Required: 1. Using the columnar approach, calculate the variable overhead spending and efficiency variances. Enter amounts as positive numbers and select Favorable (F) or Unfavorable (u). (22 (3) Spending Emceney 2. Using the formula approach, calculate the variable overhead spending variance Enter amount as a positive number and select favorable or unfavorable 3. Uning the formula approach, calculate the variable overhead efficiency variance Enter amount as a positive number and select voor forable