-11.03% is the change from 390 to 347
Calculation steps:
[( 347 - 390 ) ÷ 390] x 100 = -11.03%
Formula
Percentage change = [(347 - 390) / 390] x 100
Subtract the new number by the original number
347 - 390 = -43
-43 ÷ 390 = -0.11025641025641025
-0.11025641025641025 x 100 = -11.03%