-32.91% is the change from 234 to 157
Calculation steps:
[( 157 - 234 ) ÷ 234] x 100 = -32.91%
Formula
Percentage change = [(157 - 234) / 234] x 100
Subtract the new number by the original number
157 - 234 = -77
-77 ÷ 234 = -0.32905982905982906
-0.32905982905982906 x 100 = -32.91%