-16.69% is the change from 623 to 519
Calculation steps:
[( 519 - 623 ) ÷ 623] x 100 = -16.69%
Formula
Percentage change = [(519 - 623) / 623] x 100
Subtract the new number by the original number
519 - 623 = -104
-104 ÷ 623 = -0.16693418940609953
-0.16693418940609953 x 100 = -16.69%