-2.52% is the change from 993 to 968
Calculation steps:
[( 968 - 993 ) ÷ 993] x 100 = -2.52%
Formula
Percentage change = [(968 - 993) / 993] x 100
Subtract the new number by the original number
968 - 993 = -25
-25 ÷ 993 = -0.025176233635448138
-0.025176233635448138 x 100 = -2.52%