-88.31% is the change from 539 to 63
Calculation steps:
[( 63 - 539 ) ÷ 539] x 100 = -88.31%
Formula
Percentage change = [(63 - 539) / 539] x 100
Subtract the new number by the original number
63 - 539 = -476
-476 ÷ 539 = -0.8831168831168831
-0.8831168831168831 x 100 = -88.31%