849.38% is the change from 81 to 769
Calculation steps:
[( 769 - 81 ) ÷ 81] x 100 = 849.38%
Formula
Percentage change = [(769 - 81) / 81] x 100
Subtract the new number by the original number
769 - 81 = 688
688 ÷ 81 = 8.493827160493828
8.493827160493828 x 100 = 849.38%