Selected financial data for The Portland Porcelain Works Coffee Mug Division is as follows: OTTO 1 Sales | $2,400,000 Operating income $600,000 Total assets $750,000 Current liabilities $100,000 Target rate of return 13% Weighted average cost of capital 12% What is The Portland Porcelain Works Coffee Mug Division residual income? $97,500 $510,000 $697,500 $502,500