-51.02% is the change from 539 to 264
Calculation steps:
[( 264 - 539 ) ÷ 539] x 100 = -51.02%
Formula
Percentage change = [(264 - 539) / 539] x 100
Subtract the new number by the original number
264 - 539 = -275
-275 ÷ 539 = -0.5102040816326531
-0.5102040816326531 x 100 = -51.02%