104.78% is the change from 209 to 428
Calculation steps:
[( 428 - 209 ) ÷ 209] x 100 = 104.78%
Formula
Percentage change = [(428 - 209) / 209] x 100
Subtract the new number by the original number
428 - 209 = 219
219 ÷ 209 = 1.0478468899521531
1.0478468899521531 x 100 = 104.78%