4700% is the change from 17 to 816
Calculation steps:
[( 816 - 17 ) ÷ 17] x 100 = 4700%
Formula
Percentage change = [(816 - 17) / 17] x 100
Subtract the new number by the original number
816 - 17 = 799
799 ÷ 17 = 47
47 x 100 = 4700%
Example