-4.1% is the change from 415 to 398
Calculation steps:
[( 398 - 415 ) ÷ 415] x 100 = -4.1%
Formula
Percentage change = [(398 - 415) / 415] x 100
Subtract the new number by the original number
398 - 415 = -17
-17 ÷ 415 = -0.04096385542168675
-0.04096385542168675 x 100 = -4.1%