-97.4% is the change from 231 to 6
Calculation steps:
[( 6 - 231 ) ÷ 231] x 100 = -97.4%
Formula
Percentage change = [(6 - 231) / 231] x 100
Subtract the new number by the original number
6 - 231 = -225
-225 ÷ 231 = -0.974025974025974
-0.974025974025974 x 100 = -97.4%