The standard cost of Product B manufactured by Lily Company includes 3 units of direct materials at $3.00 per unit. During June, 32,200 units of direct materials are purchased at a cost of $2.70 per unit, and 32,200 units of direct materials are used to produce 10,520 units of Product B. (a) Compute the total materials variance and the price and quantity variances. (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 31,400 units. Total materials variance Materials price variance Materials quantity variance $