Venneman Company produces a product that requires 9 standard hours per unit at a standard hourly rate of $19.00 per hour. If 6,300 units required 57,800 hours at an hourly rate of $18.43 per hour, what is the direct labor (a) rate variance, (b) time variance, and (c) total direct labor cost variance? Enter a favorable variance as a negative number using a minus sign and an unfavorable variance as a positive number. a. Direct labor rate variance Favorable b. Direct labor time variance Unfavorable c. Total direct labor cost variance $ Favorable