-28.2% is the change from 539 to 387
Calculation steps:
[( 387 - 539 ) ÷ 539] x 100 = -28.2%
Formula
Percentage change = [(387 - 539) / 539] x 100
Subtract the new number by the original number
387 - 539 = -152
-152 ÷ 539 = -0.2820037105751391
-0.2820037105751391 x 100 = -28.2%