-11.71% is the change from 828 to 731
Calculation steps:
[( 731 - 828 ) ÷ 828] x 100 = -11.71%
Formula
Percentage change = [(731 - 828) / 828] x 100
Subtract the new number by the original number
731 - 828 = -97
-97 ÷ 828 = -0.11714975845410629
-0.11714975845410629 x 100 = -11.71%