-99.13% is the change from 231 to 2
Calculation steps:
[( 2 - 231 ) ÷ 231] x 100 = -99.13%
Formula
Percentage change = [(2 - 231) / 231] x 100
Subtract the new number by the original number
2 - 231 = -229
-229 ÷ 231 = -0.9913419913419913
-0.9913419913419913 x 100 = -99.13%