-20.39% is the change from 152 to 121
Calculation steps:
[( 121 - 152 ) ÷ 152] x 100 = -20.39%
Formula
Percentage change = [(121 - 152) / 152] x 100
Subtract the new number by the original number
121 - 152 = -31
-31 ÷ 152 = -0.20394736842105263
-0.20394736842105263 x 100 = -20.39%