60% increase.
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80 = 100% 8 = 10% 4 = 5% Answer: 80 + 4 = 84
Percent of increase is a percent of change describing an increase in a quantity.An example would be: The price of an item increases from 8$ to 12$. The amount of the increase is 4$ and the percent of increase is 4/8=0.5= 50%.Answer got from Mathematics course 3 textbook from Holy McDougal.
5% increase.
25% increase.
5/8 x 100 = 62.5 percent.