-18.73% is the change from 993 to 807
Calculation steps:
[( 807 - 993 ) ÷ 993] x 100 = -18.73%
Formula
Percentage change = [(807 - 993) / 993] x 100
Subtract the new number by the original number
807 - 993 = -186
-186 ÷ 993 = -0.18731117824773413
-0.18731117824773413 x 100 = -18.73%