123.15% is the change from 406 to 906
Calculation steps:
[( 906 - 406 ) ÷ 406] x 100 = 123.15%
Formula
Percentage change = [(906 - 406) / 406] x 100
Subtract the new number by the original number
906 - 406 = 500
500 ÷ 406 = 1.2315270935960592
1.2315270935960592 x 100 = 123.15%