325% is the change from 72 to 306
Calculation steps:
[( 306 - 72 ) ÷ 72] x 100 = 325%
Formula
Percentage change = [(306 - 72) / 72] x 100
Subtract the new number by the original number
306 - 72 = 234
234 ÷ 72 = 3.25
3.25 x 100 = 325%
Example