An increase from $5,500 to $6,000 is a percentage of how much?

Question

An increase from $5,500 to $6,000 is a percentage of how much?

Answer 1

The increase was $500 (subtract 5,500 from 6,000)

The increase is 500/5,500 (the increase divided by the original amount).  

I want to say do the math yourself, but the answer is 9.1%

For problems you can't do in your head, use a calculator.  If you want to format the answer as a %, this means the decimal point is moved two places (per cent means per hundred).  If this is not clear, use Excel and format as a %