812.35% is the change from 81 to 739
Calculation steps:
[( 739 - 81 ) ÷ 81] x 100 = 812.35%
Formula
Percentage change = [(739 - 81) / 81] x 100
Subtract the new number by the original number
739 - 81 = 658
658 ÷ 81 = 8.123456790123457
8.123456790123457 x 100 = 812.35%