-5.74% is the change from 993 to 936
Calculation steps:
[( 936 - 993 ) ÷ 993] x 100 = -5.74%
Formula
Percentage change = [(936 - 993) / 993] x 100
Subtract the new number by the original number
936 - 993 = -57
-57 ÷ 993 = -0.05740181268882175
-0.05740181268882175 x 100 = -5.74%