-49.73% is the change from 555 to 279
Calculation steps:
[( 279 - 555 ) ÷ 555] x 100 = -49.73%
Formula
Percentage change = [(279 - 555) / 555] x 100
Subtract the new number by the original number
279 - 555 = -276
-276 ÷ 555 = -0.4972972972972973
-0.4972972972972973 x 100 = -49.73%