-64.38% is the change from 539 to 192
Calculation steps:
[( 192 - 539 ) ÷ 539] x 100 = -64.38%
Formula
Percentage change = [(192 - 539) / 539] x 100
Subtract the new number by the original number
192 - 539 = -347
-347 ÷ 539 = -0.6437847866419295
-0.6437847866419295 x 100 = -64.38%