-40.14% is the change from 867 to 519
Calculation steps:
[( 519 - 867 ) ÷ 867] x 100 = -40.14%
Formula
Percentage change = [(519 - 867) / 867] x 100
Subtract the new number by the original number
519 - 867 = -348
-348 ÷ 867 = -0.4013840830449827
-0.4013840830449827 x 100 = -40.14%