Koontz Company manufactures a number of products. The standards relating to one of actual cost data for May products are shown below along with 7 Standard Cost per Unit Actual Cost per Unit $ 8.74 ht 59.25 18.es 01:49.es Direct materials: Standard: 1.90 feet at $4.60 per foot Actual: 1.85 feet at $5.00 per foot Direct labor: Standard: 2.95 hours at $19.ee per hour Actual: 1.ee hours at $18.50 per hour Variable overhead: Standard: 0.95 hours at $7.ee per hour Actual: 1.ee hours at $6.50 per hour Total cost per unit Excess of actual cost over standard cost per unit 18.58 6.65 6.60 $34.35 $ 33.44 $ 0.91 The production superintendent was pleased when he saw this report and commented This $0.91 excess cost is well within the 4 percent limit management has set for acceptable variances. It's obvious that there's not much to worry about with this product Actual production for the month was 19,000 units. Variable overhead cost is assigned to products on the basis of direct labor-hours. There were no beginning or ending Inventories of materials. Required: 1. Compute the following variances for May: a. Materials price and quantity variances. b Laborrate and efficiency variances. c Variable overhead rate and efficiency variances 2. How much of the $0.91 excess unit cost is traceable to each of the variances computed in (1) above. 3. How much of the $0.91 excess unit cost is traceable to apparent inefficient use of labor Ume