Work Step by Step
The salon marks the price up by 40 percent, so we need to find what 140% of 4.5 dollars is. In order to find a percentage of a number, we take the percentage and divide it by 100 to turn it into a decimal. We multiply this decimal by the original number to get the answer. Thus, we divide 140 by 100 to get 1.4. We multiply 4.50 dollars by 1.4 to get an answer of 6.3 dollars.