831.33% is the change from 83 to 773
Calculation steps:
[( 773 - 83 ) ÷ 83] x 100 = 831.33%
Formula
Percentage change = [(773 - 83) / 83] x 100
Subtract the new number by the original number
773 - 83 = 690
690 ÷ 83 = 8.313253012048193
8.313253012048193 x 100 = 831.33%