-13.59% is the change from 390 to 337
Calculation steps:
[( 337 - 390 ) ÷ 390] x 100 = -13.59%
Formula
Percentage change = [(337 - 390) / 390] x 100
Subtract the new number by the original number
337 - 390 = -53
-53 ÷ 390 = -0.1358974358974359
-0.1358974358974359 x 100 = -13.59%