-39.2% is the change from 903 to 549
Calculation steps:
[( 549 - 903 ) ÷ 903] x 100 = -39.2%
Formula
Percentage change = [(549 - 903) / 903] x 100
Subtract the new number by the original number
549 - 903 = -354
-354 ÷ 903 = -0.3920265780730897
-0.3920265780730897 x 100 = -39.2%