308.82% is the change from 204 to 834
Calculation steps:
[( 834 - 204 ) ÷ 204] x 100 = 308.82%
Formula
Percentage change = [(834 - 204) / 204] x 100
Subtract the new number by the original number
834 - 204 = 630
630 ÷ 204 = 3.088235294117647
3.088235294117647 x 100 = 308.82%