-18.38% is the change from 990 to 808
Calculation steps:
[( 808 - 990 ) ÷ 990] x 100 = -18.38%
Formula
Percentage change = [(808 - 990) / 990] x 100
Subtract the new number by the original number
808 - 990 = -182
-182 ÷ 990 = -0.18383838383838383
-0.18383838383838383 x 100 = -18.38%