The increase in the percentage that they experience over these first two years will be 12.5%. Then the correct option is D.
The quantity of anything is stated as though it were a fraction of a hundred. A quarter of 100 can be used to express the ratio. Per 100 is what the term percent signifies. The symbol 'percent' is used to symbolize it.
A swim team has 80 swimmers in the first year and 90 swimmers in the second year.
Then the increase in the percentage that they experience over these first two years will be
P = (90 - 80)/80 x 100
P = 10/80 x 100
P = 0.125 x 100
P = 12.5%
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