294.12% is the change from 204 to 804
Calculation steps:
[( 804 - 204 ) ÷ 204] x 100 = 294.12%
Formula
Percentage change = [(804 - 204) / 204] x 100
Subtract the new number by the original number
804 - 204 = 600
600 ÷ 204 = 2.9411764705882355
2.9411764705882355 x 100 = 294.12%