121.67% is the change from 406 to 900
Calculation steps:
[( 900 - 406 ) ÷ 406] x 100 = 121.67%
Formula
Percentage change = [(900 - 406) / 406] x 100
Subtract the new number by the original number
900 - 406 = 494
494 ÷ 406 = 1.2167487684729064
1.2167487684729064 x 100 = 121.67%