The manager of Stock Division projects the following for next year: Sales $185,000 Operating income $58,500 Operating assets $375,000 The manager can invest in an additional project that would require $40,000 investment in additional assets and would generate $6,000 of additional income. The company's minimum rate of return is 14%. What is the residual income for Stock Division without the additional investment? $40,000 $6,000 $6,600 $6,200 $7,500