COST CENTER: ACTUAL/PLAN/VARIANCE - Unfavorable - favorable balance

Good day CO gurus,

Is there any standard setup wherein I can group my cost element and change its setup to unfavorable favorable balance?

my requirement is if the actual cost are less than planned cost the variance (%) should be unfavorable which is negative ➖ sign, hence if actual cost are greater that the planned cost, the variance (%) should be favorable.

Point will be rewarded.

Thanks in Advance.

Marky.