818.52% is the change from 81 to 744
Calculation steps:
[( 744 - 81 ) ÷ 81] x 100 = 818.52%
Formula
Percentage change = [(744 - 81) / 81] x 100
Subtract the new number by the original number
744 - 81 = 663
663 ÷ 81 = 8.185185185185185
8.185185185185185 x 100 = 818.52%