The standard cost of Product B manufactured by Coronado Company includes 3 units of direct materials at $3.00 per unit. During June, 26,800 units of direct materials are purchased at a cost of $2.70 per unit, and 26,800 units of direct materials are used to produce 8,720 units of Product B. (a) Compute the total materials variance and the price and quantity variances. Total materials variance $ -6120 Favorable Materials price variance $ 8040 Favorable Materials quantity variance $ 1920 Unfavorable (b) Compute the total materials variance and the price and quantity variances, assuming the purchase price is $3.15 and the quantity purchased and used is 26,000 units. Total materials variance $ 3420 Unfavorable Materials price variance $ 3900 Unfavorable V Materials quantity variance $ -52480 Favorable