678.9% is the change from 109 to 849
Calculation steps:
[( 849 - 109 ) ÷ 109] x 100 = 678.9%
Formula
Percentage change = [(849 - 109) / 109] x 100
Subtract the new number by the original number
849 - 109 = 740
740 ÷ 109 = 6.7889908256880735
6.7889908256880735 x 100 = 678.9%