-38.89% is the change from 378 to 231
Calculation steps:
[( 231 - 378 ) ÷ 378] x 100 = -38.89%
Formula
Percentage change = [(231 - 378) / 378] x 100
Subtract the new number by the original number
231 - 378 = -147
-147 ÷ 378 = -0.3888888888888889
-0.3888888888888889 x 100 = -38.89%