-33.62% is the change from 235 to 156
Calculation steps:
[( 156 - 235 ) ÷ 235] x 100 = -33.62%
Formula
Percentage change = [(156 - 235) / 235] x 100
Subtract the new number by the original number
156 - 235 = -79
-79 ÷ 235 = -0.33617021276595743
-0.33617021276595743 x 100 = -33.62%