-1.01% is the change from 398 to 394
Calculation steps:
[( 394 - 398 ) ÷ 398] x 100 = -1.01%
Formula
Percentage change = [(394 - 398) / 398] x 100
Subtract the new number by the original number
394 - 398 = -4
-4 ÷ 398 = -0.010050251256281407
-0.010050251256281407 x 100 = -1.01%