-37.11% is the change from 539 to 339
Calculation steps:
[( 339 - 539 ) ÷ 539] x 100 = -37.11%
Formula
Percentage change = [(339 - 539) / 539] x 100
Subtract the new number by the original number
339 - 539 = -200
-200 ÷ 539 = -0.37105751391465674
-0.37105751391465674 x 100 = -37.11%