99.02% is the change from 204 to 406
Calculation steps:
[( 406 - 204 ) ÷ 204] x 100 = 99.02%
Formula
Percentage change = [(406 - 204) / 204] x 100
Subtract the new number by the original number
406 - 204 = 202
202 ÷ 204 = 0.9901960784313726
0.9901960784313726 x 100 = 99.02%