-37.54% is the change from 863 to 539
Calculation steps:
[( 539 - 863 ) ÷ 863] x 100 = -37.54%
Formula
Percentage change = [(539 - 863) / 863] x 100
Subtract the new number by the original number
539 - 863 = -324
-324 ÷ 863 = -0.37543453070683663
-0.37543453070683663 x 100 = -37.54%