Shared Variable

Hi All,

I have a sub report in that i created a formula like this.

local numberVar vararesult;

local numbervar ads ;

local numbervar atrans;

if ({Command.tarAds})>=({Command.actAds}) and ({Command.tarTrans})>=({Command.actTrans})

then vararesult := {Command.tarSale}-{Command.actSale}

else (

if {Command.tarAds}>{Command.actAds} then

ads := {Command.tarAds}

else

ads := {Command.actAds};

if {Command.tarTrans}>{Command.actTrans} then

atrans :={Command.tarTrans}

else

atrans :={Command.actTrans};

vararesult := (ads *atrans)-{Command.actSale} )

Now in the main report i need to show sum of this formula.I tried using shared variable but getting errors,as my formula already contains some local variables.

Ex:

12

3

4

5

sum: 24

Please suggest