-50.18% is the change from 554 to 276
Calculation steps:
[( 276 - 554 ) ÷ 554] x 100 = -50.18%
Formula
Percentage change = [(276 - 554) / 554] x 100
Subtract the new number by the original number
276 - 554 = -278
-278 ÷ 554 = -0.5018050541516246
-0.5018050541516246 x 100 = -50.18%