125% is the change from 144 to 324
Calculation steps:
[( 324 - 144 ) ÷ 144] x 100 = 125%
Formula
Percentage change = [(324 - 144) / 144] x 100
Subtract the new number by the original number
324 - 144 = 180
180 ÷ 144 = 1.25
1.25 x 100 = 125%
Example