Required information [The following information applies to the questions displayed below.] National Bank has several departments that occupy both floors of a two-story building. The departmental accounting system has a single account, Building Occupancy Cost, in its ledger. The types and amounts of occupancy costs recorded in this account for the current period follow Depreciation-Building Interest-Building mortgage Taxes-Building and land Gas (heating) exp Lighting expense Maintenance expense $18,000 27,000 8,000 2,500 3,000 5,500 $ 64,000 Total occupancy cost The building has 4,000 square feet on each floor. In prior periods, the accounting manager merely divided the $64,000 occupancy cost by 8,000 square feet to find an average cost of $8 per square foot and then charged each department a building occupancy cost equal to this rate times the number of square feet that it occupied