-88.13% is the change from 539 to 64
Calculation steps:
[( 64 - 539 ) ÷ 539] x 100 = -88.13%
Formula
Percentage change = [(64 - 539) / 539] x 100
Subtract the new number by the original number
64 - 539 = -475
-475 ÷ 539 = -0.8812615955473099
-0.8812615955473099 x 100 = -88.13%