1500% is the change from 9 to 144
Calculation steps:
[( 144 - 9 ) ÷ 9] x 100 = 1500%
Formula
Percentage change = [(144 - 9) / 9] x 100
Subtract the new number by the original number
144 - 9 = 135
135 ÷ 9 = 15
15 x 100 = 1500%
Example