Divide by zero in calculated column

I am creating a calculated column in a datagrid. I am doing a division that can end up with a divide by zero. I tried implementing an if statement, but it generates an error. Can you possibly tell me how to handle the divide by zero error?

if (${data.EspCount} > 0)
${String.Format("{0:P2}", data.Count/data.EspCount)};

Also tried this
if (${data.EspCount} > 0){${String.Format("{0:P2}", data.Count/data.EspCount)};}

Use a ternary operator:

${data.EspCount > 0 ? String.Format("{0:P2}", data.Count/data.EspCount) : ""}

Yup...thank you...was looking at it to closely...missed that!