-39.37% is the change from 381 to 231
Calculation steps:
[( 231 - 381 ) ÷ 381] x 100 = -39.37%
Formula
Percentage change = [(231 - 381) / 381] x 100
Subtract the new number by the original number
231 - 381 = -150
-150 ÷ 381 = -0.3937007874015748
-0.3937007874015748 x 100 = -39.37%