-54.75% is the change from 990 to 448
Calculation steps:
[( 448 - 990 ) ÷ 990] x 100 = -54.75%
Formula
Percentage change = [(448 - 990) / 990] x 100
Subtract the new number by the original number
448 - 990 = -542
-542 ÷ 990 = -0.5474747474747474
-0.5474747474747474 x 100 = -54.75%