Ruby Company produces a chair that requires a standard 5 yards of material per unit. The standard price of one yard of material is $9.80. During the month, 4,400 chairs were manufactured, using 22,200 yards at a cost of $10.29 per yard. Determine the (a) direct materials price variance, (b) direct materials quantity variance, and (c) total direct materials cost variance. Enter favorable variances as negative numbers. a. Direct materials price variance $fill in the blank 1