The degree of operating leverage for Murphy Company is 8.0 at 80,000 units of sales. At 80,000 units of sales, the net profit is $10,000. If the sales volume decreases to 72,000 units, what is the net profit? Group of answer choices 1) $10,000 2) $2,000 3) None of the answer choices is correct 4) $18,000 5) $8,000