You are given the following information about Duvet Company Variances Production-Volume $ Variable manufacturing overhead Fixed manufacturing overhead Spending Efficiency 13,000 U $ 12,500 F 10,000 F $ $ 30,000 U Read the requirements. Requirement a. In a combined 3-variance analysis, what is the total spending variance? (Label the variance as favorable (F) or unfavorable (U).) In a combined 3-variance analysis, the total spending variance is Requirement b. What is the total overhead variance? (Label the variance as favorable (F) or unfavorable (U).) The total overhead variance is