-9.74% is the change from 390 to 352
Calculation steps:
[( 352 - 390 ) ÷ 390] x 100 = -9.74%
Formula
Percentage change = [(352 - 390) / 390] x 100
Subtract the new number by the original number
352 - 390 = -38
-38 ÷ 390 = -0.09743589743589744
-0.09743589743589744 x 100 = -9.74%