-5.25% is the change from 877 to 831
Calculation steps:
[( 831 - 877 ) ÷ 877] x 100 = -5.25%
Formula
Percentage change = [(831 - 877) / 877] x 100
Subtract the new number by the original number
831 - 877 = -46
-46 ÷ 877 = -0.052451539338654506
-0.052451539338654506 x 100 = -5.25%