-10.09% is the change from 813 to 731
Calculation steps:
[( 731 - 813 ) ÷ 813] x 100 = -10.09%
Formula
Percentage change = [(731 - 813) / 813] x 100
Subtract the new number by the original number
731 - 813 = -82
-82 ÷ 813 = -0.1008610086100861
-0.1008610086100861 x 100 = -10.09%