MMM Corp. used the following data to evaluate its current operating system. The company sells items for $22 each and used a budgeted selling price of $20 per unit. Units sold Variable costs Fixed costs Actual 95,000 units $680,000 $154,000 Budgeted 94,000 units $658,000 $150,000 What is the sales-volume variance for variable costs? $7,000 favorable $7,000 unfavorable O $15,000 unfavorable $15,000 favorable $22,000 unfavorable