859.26% is the change from 81 to 777
Calculation steps:
[( 777 - 81 ) ÷ 81] x 100 = 859.26%
Formula
Percentage change = [(777 - 81) / 81] x 100
Subtract the new number by the original number
777 - 81 = 696
696 ÷ 81 = 8.592592592592593
8.592592592592593 x 100 = 859.26%