Question 24 8 points Savower Denim Manufacturing Company produces denim jeans in batches of 100 units. The standard cost of each batch consists of 200 pounds of fabric at a cost of $5 per pound, 25 direct in bor hours at $11 per hour, and variable overhead cost based on machine hours at the rate of $10 per machine hour with 24 machine hours per batch The following variable costs were incurred for the most recent 100 units produced Direct Materials 280 pounds costing $1,700 were purchased and used Direct Labor 20 hours costing $265 Variable Overhead $410 Machine Hours Used 18 hours Calculate the company's variable overhead efficiency variance a $300 U b.-$96 F c. $400 U d. -$55 F