734.57% is the change from 81 to 676
Calculation steps:
[( 676 - 81 ) ÷ 81] x 100 = 734.57%
Formula
Percentage change = [(676 - 81) / 81] x 100
Subtract the new number by the original number
676 - 81 = 595
595 ÷ 81 = 7.345679012345679
7.345679012345679 x 100 = 734.57%