-37.66% is the change from 231 to 144
Calculation steps:
[( 144 - 231 ) ÷ 231] x 100 = -37.66%
Formula
Percentage change = [(144 - 231) / 231] x 100
Subtract the new number by the original number
144 - 231 = -87
-87 ÷ 231 = -0.37662337662337664
-0.37662337662337664 x 100 = -37.66%