-39.09% is the change from 903 to 550
Calculation steps:
[( 550 - 903 ) ÷ 903] x 100 = -39.09%
Formula
Percentage change = [(550 - 903) / 903] x 100
Subtract the new number by the original number
550 - 903 = -353
-353 ÷ 903 = -0.3909191583610188
-0.3909191583610188 x 100 = -39.09%