Lo-bed Company produces a product that requires four standard hours per unit at a standard hourly rate of $28.00 per hour. If 4,000 units required 16,750 hours at an hourly rate of $28.40 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.

a. Direct labor rate variance $fill in the blank 1

b. Direct labor time variance $fill in the blank 3

c. Direct labor cost variance $fill in the blank 5