-42.04% is the change from 949 to 550
Calculation steps:
[( 550 - 949 ) ÷ 949] x 100 = -42.04%
Formula
Percentage change = [(550 - 949) / 949] x 100
Subtract the new number by the original number
550 - 949 = -399
-399 ÷ 949 = -0.4204425711275026
-0.4204425711275026 x 100 = -42.04%