-54.65% is the change from 990 to 449
Calculation steps:
[( 449 - 990 ) ÷ 990] x 100 = -54.65%
Formula
Percentage change = [(449 - 990) / 990] x 100
Subtract the new number by the original number
449 - 990 = -541
-541 ÷ 990 = -0.5464646464646464
-0.5464646464646464 x 100 = -54.65%