Direct Labor Variances Tip Top Corp. produces a product that requires 10 standard hours per unit at a standard hourly rate of $21 per hour. If 2,500 units required 24,500 hours at an hourly rate of $21.42 per hour, what is the direct labor (a) rate variance, (b) time variance, and (c) cost variance? Enter a favorable variance as a negative number using a minus sign and an unfavorable variance as a positive number Unfavorable Favorable Favorable a. Direct labor rate variance b. Direct labor time variance c. Direct labor cost variance