Netsuite Advanced PDF/HTML add custom column if value

I need help with adding a custom column with id 'item.custcol_new_unit_price'.

If there is a value for this column on any item, I need this column to appear on the printed form. I would think it would be something like this:

<td align="right" colspan="4"><#if item.custcol_new_unit_price>${item.custcol_new_unit_price}</#if></td>

Any assistance would be helpful. Thank you!