400% is the change from 24 to 120
Calculation steps:
[( 120 - 24 ) ÷ 24] x 100 = 400%
Formula
Percentage change = [(120 - 24) / 24] x 100
Subtract the new number by the original number
120 - 24 = 96
96 ÷ 24 = 4
4 x 100 = 400%
Example