Direct Materials, Direct Labor, and Factory Qverhead Cost Venance Analysis Road Gripper Tire Co. manufactures automobile tires. Standard costs and actual costs for direct materials, direct labor, and factory overhead incurred for the manufacture of 4,160 tires were as follows: Required: a. Deterthine the direct materials price variance, direct materials quantit varience, and total direct materials coat vatiance. Enter a favorable variance as a negative number using a minus aign and an unfavorable variance as a positive number. Each tire requires 0.5 hour of direct labor. Required: a. Determine the direct materials price variance, direct materials quantity variance, and total direct materlals coat variance. Enter a favorable variance as a negative number using a minus sign and an unfavorable variance as a positive number. 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. c. Determine the varioble foctory overhad controliable variace, fived factory overhead wolume variance, and total factory overhead cost variance. Enter a favorable variance as a negative number using a minus oign and an unfavorable variance as a positive number