-2.45% is the change from 408 to 398
Calculation steps:
[( 398 - 408 ) ÷ 408] x 100 = -2.45%
Formula
Percentage change = [(398 - 408) / 408] x 100
Subtract the new number by the original number
398 - 408 = -10
-10 ÷ 408 = -0.024509803921568627
-0.024509803921568627 x 100 = -2.45%