The beginning accounts receivable balance in the annual accounting period of a firm is $35060 and the ending accounts receivable balance is $34310. The annual sales, using a markup of 20% is 289860; all sales are credit sales. Assume annual days of operations to be 345 days. The accounts receivable turnover rate is = (Round TWO places of decimal) The average days of sale outsanding or DSO - days (Round TWO places of decimal) Assume that the manufacturer pays all its vendors in cash; its operating capital is borrowed at an interest rate - 26% If DSI - 52 days, then annual rate of return on operating capital AFTER paying interest is = % (Round TWO places of decimal)