-20.64% is the change from 993 to 788
Calculation steps:
[( 788 - 993 ) ÷ 993] x 100 = -20.64%
Formula
Percentage change = [(788 - 993) / 993] x 100
Subtract the new number by the original number
788 - 993 = -205
-205 ÷ 993 = -0.20644511581067473
-0.20644511581067473 x 100 = -20.64%