299.02% is the change from 204 to 814
Calculation steps:
[( 814 - 204 ) ÷ 204] x 100 = 299.02%
Formula
Percentage change = [(814 - 204) / 204] x 100
Subtract the new number by the original number
814 - 204 = 610
610 ÷ 204 = 2.9901960784313726
2.9901960784313726 x 100 = 299.02%