The Platter Valley factory of Bybee Industries uses a three-variance analysis of the total factory overhead variance. Required: 1. Compute the total overhead spending variance, the efficiency variance, and the fixed overhead production volume variance. Production Volume Variance Spending Variance Efficiency Variance 2. Determine the spending variances (both variable and fixed), the efficiency variance, and the fixed overhead production volume variance. Four-Way Analysis of Total Overhead Variance Variable overhead spending variance Fixed overhead spending variance Efficiency variance Production volume variance