-6.79% is the change from 427 to 398
Calculation steps:
[( 398 - 427 ) ÷ 427] x 100 = -6.79%
Formula
Percentage change = [(398 - 427) / 427] x 100
Subtract the new number by the original number
398 - 427 = -29
-29 ÷ 427 = -0.06791569086651054
-0.06791569086651054 x 100 = -6.79%