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4) Puzzle Country, Inc. currently makes all sales on credit and offers no cash discount. The firm is considering a 3 percent cash discount for payment within 10 days. The firm's current average collection period is 90 days, sales are 2,500 puzzles per year, selling price is $20 per puzzle, variable cost per puzzle is $8,75, and the average cost per film is $10. The firm expects that the change in credit terms will result in a minor increase in sales of 100 puzzles per year, that 75 percent of the sales will take the discount, and the average collection period will drop to 30 days. The firm's bad debt expense is expected to become negligible under the proposed plan. The bad debt expense is currently 0.5 percent of sales. The firm's required return on equal-risk investments is 20 percent. (Assume a 360-day year.). Should this firm offer cash discount