901.22% is the change from 82 to 821
Calculation steps:
[( 821 - 82 ) ÷ 82] x 100 = 901.22%
Formula
Percentage change = [(821 - 82) / 82] x 100
Subtract the new number by the original number
821 - 82 = 739
739 ÷ 82 = 9.012195121951219
9.012195121951219 x 100 = 901.22%