3.94% is the change from 406 to 422
Calculation steps:
[( 422 - 406 ) ÷ 406] x 100 = 3.94%
Formula
Percentage change = [(422 - 406) / 406] x 100
Subtract the new number by the original number
422 - 406 = 16
16 ÷ 406 = 0.03940886699507389
0.03940886699507389 x 100 = 3.94%