-40.09% is the change from 863 to 517
Calculation steps:
[( 517 - 863 ) ÷ 863] x 100 = -40.09%
Formula
Percentage change = [(517 - 863) / 863] x 100
Subtract the new number by the original number
517 - 863 = -346
-346 ÷ 863 = -0.40092699884125144
-0.40092699884125144 x 100 = -40.09%