-40.57% is the change from 387 to 230
Calculation steps:
[( 230 - 387 ) ÷ 387] x 100 = -40.57%
Formula
Percentage change = [(230 - 387) / 387] x 100
Subtract the new number by the original number
230 - 387 = -157
-157 ÷ 387 = -0.40568475452196384
-0.40568475452196384 x 100 = -40.57%