-40.26% is the change from 539 to 322
Calculation steps:
[( 322 - 539 ) ÷ 539] x 100 = -40.26%
Formula
Percentage change = [(322 - 539) / 539] x 100
Subtract the new number by the original number
322 - 539 = -217
-217 ÷ 539 = -0.4025974025974026
-0.4025974025974026 x 100 = -40.26%