-50.54% is the change from 556 to 275
Calculation steps:
[( 275 - 556 ) ÷ 556] x 100 = -50.54%
Formula
Percentage change = [(275 - 556) / 556] x 100
Subtract the new number by the original number
275 - 556 = -281
-281 ÷ 556 = -0.5053956834532374
-0.5053956834532374 x 100 = -50.54%