-44.55% is the change from 990 to 549
Calculation steps:
[( 549 - 990 ) ÷ 990] x 100 = -44.55%
Formula
Percentage change = [(549 - 990) / 990] x 100
Subtract the new number by the original number
549 - 990 = -441
-441 ÷ 990 = -0.44545454545454544
-0.44545454545454544 x 100 = -44.55%