822.89% is the change from 83 to 766
Calculation steps:
[( 766 - 83 ) ÷ 83] x 100 = 822.89%
Formula
Percentage change = [(766 - 83) / 83] x 100
Subtract the new number by the original number
766 - 83 = 683
683 ÷ 83 = 8.228915662650602
8.228915662650602 x 100 = 822.89%