2541.94% is the change from 31 to 819
Calculation steps:
[( 819 - 31 ) ÷ 31] x 100 = 2541.94%
Formula
Percentage change = [(819 - 31) / 31] x 100
Subtract the new number by the original number
819 - 31 = 788
788 ÷ 31 = 25.419354838709676
25.419354838709676 x 100 = 2541.94%