851.22% is the change from 82 to 780
Calculation steps:
[( 780 - 82 ) ÷ 82] x 100 = 851.22%
Formula
Percentage change = [(780 - 82) / 82] x 100
Subtract the new number by the original number
780 - 82 = 698
698 ÷ 82 = 8.512195121951219
8.512195121951219 x 100 = 851.22%