-39.86% is the change from 863 to 519
Calculation steps:
[( 519 - 863 ) ÷ 863] x 100 = -39.86%
Formula
Percentage change = [(519 - 863) / 863] x 100
Subtract the new number by the original number
519 - 863 = -344
-344 ÷ 863 = -0.3986095017381228
-0.3986095017381228 x 100 = -39.86%