Alvarado Company produces a product that requires five standard pounds per unit. The standard price is $7.50 per pound. If 4,400 units used 22,900 pounds, which were purchased at $7.88 per pound, what is the direct materials (a) price variance, (b) quantity variance, and (c) cost variance? Enter a favorable variance as a negative number using a minus sign and an unfavorable variance as a positive number