820% is the change from 80 to 736
Calculation steps:
[( 736 - 80 ) ÷ 80] x 100 = 820%
Formula
Percentage change = [(736 - 80) / 80] x 100
Subtract the new number by the original number
736 - 80 = 656
656 ÷ 80 = 8.2
8.2 x 100 = 820%
Example