I would like to understand (please show step by step how to calculate the actual rate) thanks

10.10le budget (Exhibit 11-3). Control Company, which manufactures electrical cu manufactures electrical switches, uses a standard-costing syste uction overhead costs per switch are based on direct-labor hours and are as follows: Montoursville Control The standard production o Variable overhead (5 direct-lah overhead (5 direct-labor hours @ $8.00 per hour) ved overhead (5 direct-labor hours @ $12.00 per hour $ 40 Total overhead $100 Based on capacity of 300,000 direct-labor hours per month. The following information is available for the month of October. Variable-overhead costs were $2,340,000. Fixed-overhead costs were $3,750,000. 30,000 switches were produced, although 60,000 switches were scheduled to be produced. 413,000 direct-labor hours were worked at a total cost of $2,550,000. Chapter 11 Flexible Budgeting and Analysis of Overhead Costs Required: Compute the variable-overhead spending and efficiency variances and the fixed-overhead bu and volume variances for October. Indicate whether a variance is favorable or unfavorable appropriate. (CMA, adapted)