-3.79% is the change from 422 to 406
Calculation steps:
[( 406 - 422 ) ÷ 422] x 100 = -3.79%
Formula
Percentage change = [(406 - 422) / 422] x 100
Subtract the new number by the original number
406 - 422 = -16
-16 ÷ 422 = -0.037914691943127965
-0.037914691943127965 x 100 = -3.79%