-38.54% is the change from 519 to 319
Calculation steps:
[( 319 - 519 ) ÷ 519] x 100 = -38.54%
Formula
Percentage change = [(319 - 519) / 519] x 100
Subtract the new number by the original number
319 - 519 = -200
-200 ÷ 519 = -0.3853564547206166
-0.3853564547206166 x 100 = -38.54%