8200% is the change from 9 to 747
Calculation steps:
[( 747 - 9 ) ÷ 9] x 100 = 8200%
Formula
Percentage change = [(747 - 9) / 9] x 100
Subtract the new number by the original number
747 - 9 = 738
738 ÷ 9 = 82
82 x 100 = 8200%
Example