29.43% is the change from 649 to 840
Calculation steps:
[( 840 - 649 ) ÷ 649] x 100 = 29.43%
Formula
Percentage change = [(840 - 649) / 649] x 100
Subtract the new number by the original number
840 - 649 = 191
191 ÷ 649 = 0.2942989214175655
0.2942989214175655 x 100 = 29.43%