-30.93% is the change from 831 to 574
Calculation steps:
[( 574 - 831 ) ÷ 831] x 100 = -30.93%
Formula
Percentage change = [(574 - 831) / 831] x 100
Subtract the new number by the original number
574 - 831 = -257
-257 ÷ 831 = -0.309265944645006
-0.309265944645006 x 100 = -30.93%