In the current year, Nighthawk Corporation, a calendar year C corporation, has $5,440,000 of adjusted taxable income and $163,200 of business interest income. Nighthawk has no floor plan financing interest. The business interest expense for the year is $2,176,000. a. Assume that Nighthawk has average gross receipts for the prior three-year period of $40,000,000. Determine Nighthawk's current-year deduction for business interest. $ 1,795,200 b. Assume that Nighthawk has average gross receipts for the prior three-year period of $22,500,000. Determine Nighthawk's current-year deduction for business interest. $ 1,400,000 X