8.61% is the change from 813 to 883
Calculation steps:
[( 883 - 813 ) ÷ 813] x 100 = 8.61%
Formula
Percentage change = [(883 - 813) / 813] x 100
Subtract the new number by the original number
883 - 813 = 70
70 ÷ 813 = 0.08610086100861009
0.08610086100861009 x 100 = 8.61%