-66.6% is the change from 539 to 180
Calculation steps:
[( 180 - 539 ) ÷ 539] x 100 = -66.6%
Formula
Percentage change = [(180 - 539) / 539] x 100
Subtract the new number by the original number
180 - 539 = -359
-359 ÷ 539 = -0.6660482374768089
-0.6660482374768089 x 100 = -66.6%