Interactive Exercise 4-12: Putting it all together James is selling computer equipment and was able to get a good deal on the newest model of colour printer. His cost is $200, less trade discounts of 20%, and 10%. James estimates that his overhead is 40% of the selling price, and profit is 24% of the selling price. After two months, James will discount the printers by 15%, and two months later by a further 15%.