-22.93% is the change from 519 to 400
Calculation steps:
[( 400 - 519 ) ÷ 519] x 100 = -22.93%
Formula
Percentage change = [(400 - 519) / 519] x 100
Subtract the new number by the original number
400 - 519 = -119
-119 ÷ 519 = -0.22928709055876687
-0.22928709055876687 x 100 = -22.93%