-48.9% is the change from 546 to 279
Calculation steps:
[( 279 - 546 ) ÷ 546] x 100 = -48.9%
Formula
Percentage change = [(279 - 546) / 546] x 100
Subtract the new number by the original number
279 - 546 = -267
-267 ÷ 546 = -0.489010989010989
-0.489010989010989 x 100 = -48.9%