-12.56% is the change from 398 to 348
Calculation steps:
[( 348 - 398 ) ÷ 398] x 100 = -12.56%
Formula
Percentage change = [(348 - 398) / 398] x 100
Subtract the new number by the original number
348 - 398 = -50
-50 ÷ 398 = -0.12562814070351758
-0.12562814070351758 x 100 = -12.56%