-22.64% is the change from 711 to 550
Calculation steps:
[( 550 - 711 ) ÷ 711] x 100 = -22.64%
Formula
Percentage change = [(550 - 711) / 711] x 100
Subtract the new number by the original number
550 - 711 = -161
-161 ÷ 711 = -0.22644163150492264
-0.22644163150492264 x 100 = -22.64%