Ivan Company manufactures product A. Each product requires 4 units of each RM X, which has a standard cost of Php2.50 per unit. During December, the company paid a total of Php86,400 for purchases of RM X. In addition, it had the following experience with respect to RM X: Purchases Used in manufacturing Unit 28,800 24,000 Number of units produced 7,200 During December, determine the material quantity (usage) variance. Php 4,800 F Php 12,000 UF Php 12,000 F Php 4,800 UF