-6.68% is the change from 419 to 391
Calculation steps:
[( 391 - 419 ) ÷ 419] x 100 = -6.68%
Formula
Percentage change = [(391 - 419) / 419] x 100
Subtract the new number by the original number
391 - 419 = -28
-28 ÷ 419 = -0.06682577565632458
-0.06682577565632458 x 100 = -6.68%