Johnston manufacturing company purchased 14,000 switches to make 6,000 units. the standard allows for 2 switches per unit. the company actually used 12,500 to produce the 6,000 units. johnson budgets $0.75 per switch, but because they received a discount for purchasing more than 10,000 switches, they received a discount of $0.05 per switch and paid $0.70 each. what is Johnstons direct materials price variance for the period? A) $500 favorable B)$600 favorable C)$625 favorable D)$700 favorable