-12.56% is the change from 390 to 341
Calculation steps:
[( 341 - 390 ) ÷ 390] x 100 = -12.56%
Formula
Percentage change = [(341 - 390) / 390] x 100
Subtract the new number by the original number
341 - 390 = -49
-49 ÷ 390 = -0.12564102564102564
-0.12564102564102564 x 100 = -12.56%