-41.81% is the change from 684 to 398
Calculation steps:
[( 398 - 684 ) ÷ 684] x 100 = -41.81%
Formula
Percentage change = [(398 - 684) / 684] x 100
Subtract the new number by the original number
398 - 684 = -286
-286 ÷ 684 = -0.41812865497076024
-0.41812865497076024 x 100 = -41.81%