860.49% is the change from 81 to 778
Calculation steps:
[( 778 - 81 ) ÷ 81] x 100 = 860.49%
Formula
Percentage change = [(778 - 81) / 81] x 100
Subtract the new number by the original number
778 - 81 = 697
697 ÷ 81 = 8.604938271604938
8.604938271604938 x 100 = 860.49%