-73.47% is the change from 539 to 143
Calculation steps:
[( 143 - 539 ) ÷ 539] x 100 = -73.47%
Formula
Percentage change = [(143 - 539) / 539] x 100
Subtract the new number by the original number
143 - 539 = -396
-396 ÷ 539 = -0.7346938775510204
-0.7346938775510204 x 100 = -73.47%