How to get the SUM of ROW VALUES in DATAGRID in vb6

Please help me guys! I want to get the Total values of manually encoded data in DataGrid please see example below: ------------------------------------------------- ITEM DAY1 DAY2 DAY3 Metal1 100 100 100 Metal2 200 150 200 .............300 250 300 ------------------------------------------------- Any replies will be gladly appreciated. Thank you very much guys! Cheers:)