Consider the following balance sheet data for Lexis Computer Stores: Cash $ 52,000 Accounts payable $ 64,500 Receivables 204,500 Short-term bank note 122,000 Inventories 175,500 Accrued wages and taxes 52,500 Total current assets $ 432,000 Total current liabilities $ 239,000 Long-term bonds 389,500 Common stock 120,000 Net plant & equip. 453,000 Retained earnings 136,500 Total assets $ 885,000 Total liabilities & equity $ 885,000 How much of the company's profits have been reinvested over the years?