Question

Shannon had 765

Answer 1

(765 - 153)/765*100

(612)/765*100

0.8*100

80% of original

100% - 80% = 20% reduction

Answer 2

Answer:

20%

Step-by-step explanation:

Hello

to solve this problem  we can use a rule of three

Let

the total cards Shannon had  is  100%

so

765   Cards ⇒ 100%

Now, she sold 153 cards

using a rule of three ,it is posible to find the percent of change

Let

765  ⇒ 100%

153   ⇒ x%?

$x=\frac{153\ cards *100}{764 \ cards}$

x= 20%

Shannon sold the 20% of her cards

the percent of change in the number of Shannon's baseball card collection is  20%

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