-50% is the change from 552 to 276
Calculation steps:
[( 276 - 552 ) ÷ 552] x 100 = -50%
Formula
Percentage change = [(276 - 552) / 552] x 100
Subtract the new number by the original number
276 - 552 = -276
-276 ÷ 552 = -0.5
-0.5 x 100 = -50%
Example