Answer :

JessicaRufus
72-42=30
percent of change= amount of change/original amount
percent of change=30/42
Percent of change= 0.71428
Percent of change=71.4%
iGreen
First, we subtract the two numbers.

72 - 42 = 30

Now we divide this to the original number.

30 / 42 = 0.71428571428

Multiply by 100:

71.428571428

So the percent increase is approximately 71.43%

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