Custodial Guest-Days Supplies Expense High activity level Low activity level Change 12.000 $ 4,000 8,000$ 13,500 7,500 6,000 Variable cost per guest-day0.75 per guest-day Fixed cost per month S 4,500 2. Using the cost formula you derived above, what amount of custodial supplies expense would you expect to be incurred at an occupancy level of 11,000 guest-days? (Do not round your intermediate calculations.) Variable cost Fixed cost Total cost