Does anyone know how to calculate cost of savings when calculating the net present value? The NPV was given and I have to backed into the other figures. The only thing about cost savings provided is "25% reduction in direct material. The DM cost listed is $10. I tried using $2.50 by the # of units produced by that does not work

Compare the accounts receivable turnover ratios for Coca-Cola and Wal-Mart. What characteristic(s) of these companies would indicate that these ratios are reasonable?