-42.51% is the change from 955 to 549
Calculation steps:
[( 549 - 955 ) ÷ 955] x 100 = -42.51%
Formula
Percentage change = [(549 - 955) / 955] x 100
Subtract the new number by the original number
549 - 955 = -406
-406 ÷ 955 = -0.42513089005235605
-0.42513089005235605 x 100 = -42.51%