BJ. 3, 4 c. Controllable ance, $260 F ct materials, direct labor, and factory overhead cost variance an ,processes a base chemical into plastic. Standard costs and actual PR 7-3A Direct materials, direct Specialty Polymers, Inc., processes a base chemicalhad incurred for the costs for direct materials, di rect labor, and factory overhead incurred for the ma of 19,000 units of product were as follows: Actual Costs Standard Costs 2,440 lbs. at $8.30 3,750 hrs. at $17.68 2,500 lbs. at $8.10 3,800 hrs. at $17.50 Rates per direct labor hr., based on 100% of normal capacity of 3,900 direct labor hrs.: Direct materials Direct labor Factory overhead Variable cost, $2.20 Fixed cost, $3.50 $8,100 variable cost $13,650 fixed cost Each unit requires 0.2 hour of direct labor. Instructions Determine (a) the price variance, quantity variance, and total direct materials cost variance (b) the rate variance, time variance, and total direct labor cost variance; and factory overhead controllable variance, the fixed factory overhead volume variance, and total factory overhead cost variance