-89.61% is the change from 231 to 24
Calculation steps:
[( 24 - 231 ) ÷ 231] x 100 = -89.61%
Formula
Percentage change = [(24 - 231) / 231] x 100
Subtract the new number by the original number
24 - 231 = -207
-207 ÷ 231 = -0.8961038961038961
-0.8961038961038961 x 100 = -89.61%