-50.09% is the change from 559 to 279
Calculation steps:
[( 279 - 559 ) ÷ 559] x 100 = -50.09%
Formula
Percentage change = [(279 - 559) / 559] x 100
Subtract the new number by the original number
279 - 559 = -280
-280 ÷ 559 = -0.5008944543828264
-0.5008944543828264 x 100 = -50.09%