-39.58% is the change from 993 to 600
Calculation steps:
[( 600 - 993 ) ÷ 993] x 100 = -39.58%
Formula
Percentage change = [(600 - 993) / 993] x 100
Subtract the new number by the original number
600 - 993 = -393
-393 ÷ 993 = -0.3957703927492447
-0.3957703927492447 x 100 = -39.58%