-8.18% is the change from 831 to 763
Calculation steps:
[( 763 - 831 ) ÷ 831] x 100 = -8.18%
Formula
Percentage change = [(763 - 831) / 831] x 100
Subtract the new number by the original number
763 - 831 = -68
-68 ÷ 831 = -0.08182912154031288
-0.08182912154031288 x 100 = -8.18%