-40.2% is the change from 393 to 235
Calculation steps:
[( 235 - 393 ) ÷ 393] x 100 = -40.2%
Formula
Percentage change = [(235 - 393) / 393] x 100
Subtract the new number by the original number
235 - 393 = -158
-158 ÷ 393 = -0.4020356234096692
-0.4020356234096692 x 100 = -40.2%