-18.69% is the change from 519 to 422
Calculation steps:
[( 422 - 519 ) ÷ 519] x 100 = -18.69%
Formula
Percentage change = [(422 - 519) / 519] x 100
Subtract the new number by the original number
422 - 519 = -97
-97 ÷ 519 = -0.18689788053949905
-0.18689788053949905 x 100 = -18.69%