-30.55% is the change from 550 to 382
Calculation steps:
[( 382 - 550 ) ÷ 550] x 100 = -30.55%
Formula
Percentage change = [(382 - 550) / 550] x 100
Subtract the new number by the original number
382 - 550 = -168
-168 ÷ 550 = -0.3054545454545455
-0.3054545454545455 x 100 = -30.55%