2522.58% is the change from 31 to 813
Calculation steps:
[( 813 - 31 ) ÷ 31] x 100 = 2522.58%
Formula
Percentage change = [(813 - 31) / 31] x 100
Subtract the new number by the original number
813 - 31 = 782
782 ÷ 31 = 25.225806451612904
25.225806451612904 x 100 = 2522.58%