-87.57% is the change from 539 to 67
Calculation steps:
[( 67 - 539 ) ÷ 539] x 100 = -87.57%
Formula
Percentage change = [(67 - 539) / 539] x 100
Subtract the new number by the original number
67 - 539 = -472
-472 ÷ 539 = -0.87569573283859
-0.87569573283859 x 100 = -87.57%