-3% is the change from 567 to 550
Calculation steps:
[( 550 - 567 ) ÷ 567] x 100 = -3%
Formula
Percentage change = [(550 - 567) / 567] x 100
Subtract the new number by the original number
550 - 567 = -17
-17 ÷ 567 = -0.029982363315696647
-0.029982363315696647 x 100 = -3%