301.96% is the change from 204 to 820
Calculation steps:
[( 820 - 204 ) ÷ 204] x 100 = 301.96%
Formula
Percentage change = [(820 - 204) / 204] x 100
Subtract the new number by the original number
820 - 204 = 616
616 ÷ 204 = 3.019607843137255
3.019607843137255 x 100 = 301.96%