21.67% is the change from 406 to 494
Calculation steps:
[( 494 - 406 ) ÷ 406] x 100 = 21.67%
Formula
Percentage change = [(494 - 406) / 406] x 100
Subtract the new number by the original number
494 - 406 = 88
88 ÷ 406 = 0.21674876847290642
0.21674876847290642 x 100 = 21.67%