How to let user define formula for their own?
S=@Price P=Profit% F=Freight% I=Insurance% C=Commision%. These vars are not changeable, user can set values of their own.
The formula can be defined by user as:
(S*(1+P)+F)*(1+I) or (S/(1-P)+F)/(1-I)/(1-C) or (S*(1+P)+F)*(1+C) or .......... (as they wish)
Thanks for your help!