-8.02% is the change from 424 to 390
Calculation steps:
[( 390 - 424 ) ÷ 424] x 100 = -8.02%
Formula
Percentage change = [(390 - 424) / 424] x 100
Subtract the new number by the original number
390 - 424 = -34
-34 ÷ 424 = -0.08018867924528301
-0.08018867924528301 x 100 = -8.02%