768.67% is the change from 83 to 721
Calculation steps:
[( 721 - 83 ) ÷ 83] x 100 = 768.67%
Formula
Percentage change = [(721 - 83) / 83] x 100
Subtract the new number by the original number
721 - 83 = 638
638 ÷ 83 = 7.686746987951807
7.686746987951807 x 100 = 768.67%