-81.26% is the change from 539 to 101
Calculation steps:
[( 101 - 539 ) ÷ 539] x 100 = -81.26%
Formula
Percentage change = [(101 - 539) / 539] x 100
Subtract the new number by the original number
101 - 539 = -438
-438 ÷ 539 = -0.8126159554730983
-0.8126159554730983 x 100 = -81.26%