-1.97% is the change from 406 to 398
Calculation steps:
[( 398 - 406 ) ÷ 406] x 100 = -1.97%
Formula
Percentage change = [(398 - 406) / 406] x 100
Subtract the new number by the original number
398 - 406 = -8
-8 ÷ 406 = -0.019704433497536946
-0.019704433497536946 x 100 = -1.97%