The Lakeshore Hotel's guest-days of occupancy and custodial supplies expense over the last seven monthswere:

Guest-Days of Custodial Supplies

Month Occupancy ............Expense

March ................... 4,000................... $7,500

April ..................... 6,500 ...................$8,250

May ...................... 8,000 ...................$10,500

June ..................... 10,500 ...................$12,000

July ...................... 12,000 ...................$13,500

August ................. 9,000 ...................$10,750

September ........... 7,500 ...................$9,750

Guest-days is a measure of the overall activity at the hotel. For example, a guest who stays at the hotel for three days is counted as three guest-days.

Required:

Using the cost formula, what amount of custodial supplies expense would you expect to be incurred at an occupancy level of 11,000 guest-days?