-39.47% is the change from 380 to 230
Calculation steps:
[( 230 - 380 ) ÷ 380] x 100 = -39.47%
Formula
Percentage change = [(230 - 380) / 380] x 100
Subtract the new number by the original number
230 - 380 = -150
-150 ÷ 380 = -0.39473684210526316
-0.39473684210526316 x 100 = -39.47%