-18.77% is the change from 991 to 805
Calculation steps:
[( 805 - 991 ) ÷ 991] x 100 = -18.77%
Formula
Percentage change = [(805 - 991) / 991] x 100
Subtract the new number by the original number
805 - 991 = -186
-186 ÷ 991 = -0.18768920282542886
-0.18768920282542886 x 100 = -18.77%