Holding period and annual (investment) returns. Baker Baseball Cards, Inc. originally purchased the rookie card of Hammerin' Hank Aaron for $35.00. After holding the card for 6 years, Baker Baseball Cards auctioned the card for $210.00. What are the holding period return and the simple annual return on this investment? What is the holding period return of the baseball card? 500 % (Round to two decimal places.) What is the simple annual return on the baseball card? 83.33 % (Round to two decimal places.) What is the effective annual return (EAR) on the baseball card? % (Round to two decimal places.)