60% is the change from 90 to 144
Calculation steps:
[( 144 - 90 ) ÷ 90] x 100 = 60%
Formula
Percentage change = [(144 - 90) / 90] x 100
Subtract the new number by the original number
144 - 90 = 54
54 ÷ 90 = 0.6
0.6 x 100 = 60%
Example