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a dog shelter had 20 puppies last month. This month, 31 puppies are at the shelter. What is the percent of change?

1 Answer

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Simple, finding markup, you'll use two equations

Markup=New-Original

Markup%=Markup/Original*100

Markup=31-20
Markup=11

Then,

Markup%= 11/20*100
M%=0.55*100
M%=55%

Thus, the percent of change was, 55%.
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