-13.74% is the change from 990 to 854
Calculation steps:
[( 854 - 990 ) ÷ 990] x 100 = -13.74%
Formula
Percentage change = [(854 - 990) / 990] x 100
Subtract the new number by the original number
854 - 990 = -136
-136 ÷ 990 = -0.13737373737373737
-0.13737373737373737 x 100 = -13.74%