We do have customer views field handlers to format our cent values in various ways and would love to see the same support for views_calc too. However, we haven't found a way yet to patch that ourselves.
I can imagine too ways of implementing this: Either make more views field handlers available for selection in the table settings or - even more elegantly - just use the same formatting for the totals that are used for the detail values. That would be most powerful. Is it also possible?