-80.17% is the change from 121 to 24
Calculation steps:
[( 24 - 121 ) ÷ 121] x 100 = -80.17%
Formula
Percentage change = [(24 - 121) / 121] x 100
Subtract the new number by the original number
24 - 121 = -97
-97 ÷ 121 = -0.8016528925619835
-0.8016528925619835 x 100 = -80.17%