-36.55% is the change from 539 to 342
Calculation steps:
[( 342 - 539 ) ÷ 539] x 100 = -36.55%
Formula
Percentage change = [(342 - 539) / 539] x 100
Subtract the new number by the original number
342 - 539 = -197
-197 ÷ 539 = -0.3654916512059369
-0.3654916512059369 x 100 = -36.55%