Adding greater than 0 in expression

[jokar]

 Hi All,

I have this expression to track orders: Count(Distinct if($(ifNotQuote), order_id))

I created a variable called 'vTotal' which represents sales. I want to add to the above expression to only show values when 'vTotal' is greater than 0. Would someone be able to help me on writing that?

Thank you in advance!