Following is a partially completed performance report for a recent week for direct labor in the binding department of a book publisher: Flexed Budget Budget Variance Direct labor Original Budget $8,930 Actual $9,600 The original budget is based on the expectation that 7,990 books would be bound; the standard is 17 books per hour at a pay rate of $19 per hour. During the week, 8,840 books were actually bound. Employees worked 480 hours at an actual total cost of $9,600. Required: a. Calculate the flexed budget amount against which actual performance should be evaluated and then calculate the budget variance. (Indicate the effect of each variance by selecting "F" for favorable, "U" for unfavorable, and "None" for no effect (i.e., zero variance).) b. Calculate the direct labor efficiency variance in terms of hours. (Indicate the effect of each variance by selecting "F" for favorable, "U" for unfavorable, and "None" for no effect (i.e., zero variance).) C. Calculate the direct labor rate variance. (Do not round intermediate calculations. Indicate the effect of each variance by selecting "F" for favorable, "U" for unfavorable, and "None" for no effect (i.e., zero variance). a. Flexed budget Budget variance Direct labor efficiency variance c. Direct labor rate variance b hours