-61.6% is the change from 539 to 207
Calculation steps:
[( 207 - 539 ) ÷ 539] x 100 = -61.6%
Formula
Percentage change = [(207 - 539) / 539] x 100
Subtract the new number by the original number
207 - 539 = -332
-332 ÷ 539 = -0.6159554730983302
-0.6159554730983302 x 100 = -61.6%