Nine is 15 percent of 60. This number is derived by multiplying 15 by 60, which is 900. Then, 900 is divided by 100 to get the final result of nine.

To calculate the percentage of any number, the percentage must be multiplied by the number, and then the resulting number is then divided by 100. Another way to calculate the percentage of a number is to move the decimal place of the percentage over two places before multiplying it. For the percentage of 15, the resulting number would be 0.15. This percentage is multiplied by 60 to get the result of 9.