-42.96% is the change from 405 to 231
Calculation steps:
[( 231 - 405 ) ÷ 405] x 100 = -42.96%
Formula
Percentage change = [(231 - 405) / 405] x 100
Subtract the new number by the original number
231 - 405 = -174
-174 ÷ 405 = -0.42962962962962964
-0.42962962962962964 x 100 = -42.96%