-40.46% is the change from 393 to 234
Calculation steps:
[( 234 - 393 ) ÷ 393] x 100 = -40.46%
Formula
Percentage change = [(234 - 393) / 393] x 100
Subtract the new number by the original number
234 - 393 = -159
-159 ÷ 393 = -0.40458015267175573
-0.40458015267175573 x 100 = -40.46%