-35.95% is the change from 993 to 636
Calculation steps:
[( 636 - 993 ) ÷ 993] x 100 = -35.95%
Formula
Percentage change = [(636 - 993) / 993] x 100
Subtract the new number by the original number
636 - 993 = -357
-357 ÷ 993 = -0.3595166163141994
-0.3595166163141994 x 100 = -35.95%