959.26% is the change from 81 to 858
Calculation steps:
[( 858 - 81 ) ÷ 81] x 100 = 959.26%
Formula
Percentage change = [(858 - 81) / 81] x 100
Subtract the new number by the original number
858 - 81 = 777
777 ÷ 81 = 9.592592592592593
9.592592592592593 x 100 = 959.26%