125% is the change from 64 to 144
Calculation steps:
[( 144 - 64 ) ÷ 64] x 100 = 125%
Formula
Percentage change = [(144 - 64) / 64] x 100
Subtract the new number by the original number
144 - 64 = 80
80 ÷ 64 = 1.25
1.25 x 100 = 125%
Example