306.8% is the change from 206 to 838
Calculation steps:
[( 838 - 206 ) ÷ 206] x 100 = 306.8%
Formula
Percentage change = [(838 - 206) / 206] x 100
Subtract the new number by the original number
838 - 206 = 632
632 ÷ 206 = 3.0679611650485437
3.0679611650485437 x 100 = 306.8%