A baseball card decreased in value 40% in its first year and 10% in its second year. What was the total percent decrease of the card's value over the two years? Choices
A) 28 %
B) 30 %
C) 32 %
D) 46 %
E) 72 %

Rationale: "consider the initial value of the baseball card as $ 100 after first year price = 100 * 0.6 = 60 after second year price = 60 * 0.9 = 54 final decrease = [ ( 100 - 54 ) / 100 ] * 100 = 46 % correct answer - d"
Answer: D