100.49% is the change from 203 to 407
Calculation steps:
[( 407 - 203 ) ÷ 203] x 100 = 100.49%
Formula
Percentage change = [(407 - 203) / 203] x 100
Subtract the new number by the original number
407 - 203 = 204
204 ÷ 203 = 1.0049261083743843
1.0049261083743843 x 100 = 100.49%