-68.18% is the change from 550 to 175
Calculation steps:
[( 175 - 550 ) ÷ 550] x 100 = -68.18%
Formula
Percentage change = [(175 - 550) / 550] x 100
Subtract the new number by the original number
175 - 550 = -375
-375 ÷ 550 = -0.6818181818181818
-0.6818181818181818 x 100 = -68.18%