-12.81% is the change from 398 to 347
Calculation steps:
[( 347 - 398 ) ÷ 398] x 100 = -12.81%
Formula
Percentage change = [(347 - 398) / 398] x 100
Subtract the new number by the original number
347 - 398 = -51
-51 ÷ 398 = -0.12814070351758794
-0.12814070351758794 x 100 = -12.81%