Cold Duck Manufacturing Inc. buys most of its raw materials from a single supplier. This supplier sells to Cold Duck on terms of 4/15, net 45. The cost per period of the trade credit extended to Cold Duck, rounded to two decimal places, is Cold Duck's trade credit has a nominal annual cost of , assuming a 365-day year. (Note: Round all intermediate calculations to four decimal places, and your final answer to two decimal places.) If Cold Duck Manufacturing Inc.'s supplier shortens its discount period to five days, this will the trade credit. the cost of decrease ncrease