-9.9% is the change from 990 to 892
Calculation steps:
[( 892 - 990 ) ÷ 990] x 100 = -9.9%
Formula
Percentage change = [(892 - 990) / 990] x 100
Subtract the new number by the original number
892 - 990 = -98
-98 ÷ 990 = -0.09898989898989899
-0.09898989898989899 x 100 = -9.9%