Tip top corp. Produced a product that required 10 standard gallons per unit. The standard price is $7 per gallon. If 4,500 units required 46,800, gallons, which were purchased at $56,65 Per gallon what is the direct materials (a) price variance, (b) quantity variance, and (c) cost variance? Enter a favorable variance as a negative plumber using a minus sign and an unfavorable variance as a positive number