-11.48% is the change from 549 to 486
Calculation steps:
[( 486 - 549 ) ÷ 549] x 100 = -11.48%
Formula
Percentage change = [(486 - 549) / 549] x 100
Subtract the new number by the original number
486 - 549 = -63
-63 ÷ 549 = -0.11475409836065574
-0.11475409836065574 x 100 = -11.48%