Mackinaw Inc. processes a base chemical into plastic. Standard costs and actual costs for direct materials, direct labor, and factory overhead incurred for the manufacture of 74,000 units of product were as follows: Standard Costs 229,400 lbs. at $4.80 Actual Costs 227,100 lbs. at $4.60 Direct materials Direct labor 18,500 hrs. at $16.30 18,930 hrs. at $16.60 Factory overhead Rates per direct labor hr., based on 100% of normal capacity of 19,310 direct labor hrs.: Variable cost, $4.30 $78,750 variable cost Fixed cost, $6.80 $131,308 fixed cost Each unit requires 0.25 hour of direct labor. Required: a. Determine the direct materials price variance, direct materials quantity variance, and total direct materials cost variance. Enter a favorable variance as a negative number using a minus sign and an unfavorable variance as a positive number. Direct Materials Price Variance Direct Materials Quantity Variance Favorable Favorable Favorable Total Direct Materials Cost Variance b. Determine the direct labor rate variance, direct labor time variance, and 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. Direct Labor Rate Variance Direct Labor Time Variance Total Direct Labor Cost Variance Unfavorable Unfavorable Unfavorable c. Determine the variable factory overhead controllable variance, fixed factory overhead volume variance, and total factory overhead cost variance. Enter a favorable variance as a negative number using a minus sign and an unfavorable variance as a positive number. Favorable Variable factory overhead controllable variance Fixed factory overhead volume variance Total factory overhead cost variance Unfavorable Unfavorable