300.96% is the change from 209 to 838
Calculation steps:
[( 838 - 209 ) ÷ 209] x 100 = 300.96%
Formula
Percentage change = [(838 - 209) / 209] x 100
Subtract the new number by the original number
838 - 209 = 629
629 ÷ 209 = 3.0095693779904304
3.0095693779904304 x 100 = 300.96%