-48.14% is the change from 538 to 279
Calculation steps:
[( 279 - 538 ) ÷ 538] x 100 = -48.14%
Formula
Percentage change = [(279 - 538) / 538] x 100
Subtract the new number by the original number
279 - 538 = -259
-259 ÷ 538 = -0.48141263940520446
-0.48141263940520446 x 100 = -48.14%