Yeopay Plumbing Supply accepts bank credit cards and offers established plumbers charge accounts with terms of $1/$eom$,$ n$/45.$ Yeopay$$s experience is that $25\%$ of its sales are for cash and bank credit cards. The remaining $75\%$ are on credit. Of the cash sales, $40\%$ pay cash and the remaining $60\%$ pay with bank credit cards. Yeopay receives payments from the bank on credit card sales at the end of the day. However, Yeopay has to pay $3\%$ for these services. An aging schedule for accounts receivable shows the following pattern on credit sales: