Number Format

[StacyCui]

Recently, I want to calculate PY Potential-(PY OR + Competitor Volume) as below. But I want to get result is 0 rather then -7.1f.  because I want to know if the result is greater than 0 or not. How to change the number format?

[sergio0592]

And if you try with :

num(PY Potential-(PY OR + Competitor Volume)  ,'# ##0')

[StacyCui]

But ,if I use this formula and then when PYPotential = 0，PYOR = 0.67， CompetitorOR = 0, the result will be 0.00. It is not right.