649.54% is the change from 109 to 817
Calculation steps:
[( 817 - 109 ) ÷ 109] x 100 = 649.54%
Formula
Percentage change = [(817 - 109) / 109] x 100
Subtract the new number by the original number
817 - 109 = 708
708 ÷ 109 = 6.495412844036697
6.495412844036697 x 100 = 649.54%