-87.38% is the change from 539 to 68
Calculation steps:
[( 68 - 539 ) ÷ 539] x 100 = -87.38%
Formula
Percentage change = [(68 - 539) / 539] x 100
Subtract the new number by the original number
68 - 539 = -471
-471 ÷ 539 = -0.8738404452690167
-0.8738404452690167 x 100 = -87.38%