You have leased a 5,000-gallon storage tank for P5,000 per month. You stored 4,000 gallons of liquid in the tank during the month. The cost of storage was P1.25 per gallon, rather than P1.00 per gallon based on 5,000 gallon capacity. Therefore, the cost of storing 4,000 gallons was P1,000 more (P.25 x 4,000) in total than if you had stored 5,000 gallons of liquid in the tank. Which variance is being described? Fixed-overhead volume variance