Subtract
$72 - $60 = $12
$12 profit
You then put the profit increase OVER the original price, making it a fraction. 12/60 now if you simplify this it is 1/5.
1/5 into a decimal is .20 and .20 to percentage is .20 x 100 = 20%
You can turn fractions to a decimal by diving the numerator by denominator. Just think of the line as the word DIVIDE.
Answer: 20% increase