A baseball card decreased in value 20% 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? Choose the correct choice from the following
A) 28% B) 30% C) 32% D) 36% E) 72%
Let the initial value of baseball card = 100   28%fter first year , value of baseball card = (1- 20/100)* 100= 
<gadget id="calculator">(1- 20/100)* 100</gadget>
<output>80</output>
80   28%fter second year , value of baseball card=(1 - 10/100)* 80= 
<gadget id="calculator">(1 - 10/100)* 80</gadget>
<output>72</output>
72   total percent decrease of the card's value over the two years= (100-72)/100 *100= 
<gadget id="calculator">(100-72)/100 *100</gadget>
<output>28</output>
28%   28%nswer 28%
<result>A</result>
A baseball card decreased in value 20% 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?