303.35% is the change from 209 to 843
Calculation steps:
[( 843 - 209 ) ÷ 209] x 100 = 303.35%
Formula
Percentage change = [(843 - 209) / 209] x 100
Subtract the new number by the original number
843 - 209 = 634
634 ÷ 209 = 3.0334928229665072
3.0334928229665072 x 100 = 303.35%