99.51% is the change from 204 to 407
Calculation steps:
[( 407 - 204 ) ÷ 204] x 100 = 99.51%
Formula
Percentage change = [(407 - 204) / 204] x 100
Subtract the new number by the original number
407 - 204 = 203
203 ÷ 204 = 0.9950980392156863
0.9950980392156863 x 100 = 99.51%