Your firm invested $2,506,900 In 230-day commercial paper today. At the end of the investment period (in 230 days) the firm will receive $2.596.100 a. What is the 230-day holding period rate of return on the investment? (Round your answer to 2 decimal places.) HPR 3.56% b. How many 230-day periods are there in one year? (Use 365 days in a year. Round your answer to 4 decimal places.) Number of periodo 1.5870 c. What is the annual percentage rate APR earned on the investment? (Round your answer to 2 decimal places.) d. What is the effective annual rate (EAR)? (Round your answer to 2 decimal places.) EAR 1 %