-42.84% is the change from 831 to 475
Calculation steps:
[( 475 - 831 ) ÷ 831] x 100 = -42.84%
Formula
Percentage change = [(475 - 831) / 831] x 100
Subtract the new number by the original number
475 - 831 = -356
-356 ÷ 831 = -0.42839951865222625
-0.42839951865222625 x 100 = -42.84%