ACTIVITY 13.3 Williams Wholesalers Ltd at present requires payment from its customers by the end of the month after the month of delivery. On average, it takes customers 70 days to pay. Sales amount to $4 million per year, and bad debts to $20,000 per year. It is planned to offer customers a cash discount of 2% for payment within 30 days. Williams estimates that 50% of customers will accept this facility, but that the rest, who tend to be slow payers, will not