-71.96% is the change from 831 to 233
Calculation steps:
[( 233 - 831 ) ÷ 831] x 100 = -71.96%
Formula
Percentage change = [(233 - 831) / 831] x 100
Subtract the new number by the original number
233 - 831 = -598
-598 ÷ 831 = -0.7196149217809867
-0.7196149217809867 x 100 = -71.96%