Totaling Different Currencies in Smart Forms

Hi Experts,

I am able to print smart form in the form of table ,

Country | Employee No. |Visa Type |Amount| Currency

USA 1 B1 500 USD

USA 1 L1 200 USD

UK 1 WP 100 GBP

UK 1 BV 500 GBP

NL 1 BV 500 EUR

DK 1 BV 100 EUR

But I want to sum up differnet currencies total wise.

Please advice.

Regards,

IFF