Old rate is 2.00, new rate is 2.05. What is the rate increase in percentage? How do you calculate?

Old water rate is 2.00

The new water rate is 2.05

I need to know the water rate increase in percentage?
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3 Answers

1-(new rate/old rate)

1-(2.05/2.00)=.025

to convert this to a percentage, move the decimal two places to the right and add the percent sign

2.5% increase
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How to calculate (1 + 0.0185)4.06

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how do I calculate the missing answer 2.5  12.5  ____ 1/12
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