Bumpas Enterprises purchases $4,562,500 in goods per year from its sole supplier on terms of 2/15, net 115. If the firm chooses to pay on time but does not take the discount, what is the effective annual percentage cost of its non-free trade credit? (Assume a 365-day year.) Please show work a. 7.12% b. 7.65% c. 6.58% d. 9.41% e. 6.66%