Set Different Text Colors In Data Table?

I am using vb.net in my project. I have a datagridview bounded to a datatable m_table which has a column called Price_Change with decimal values. I want to display text in datagridview in green if price change>0 and red otherwise. I cannot simply use the following formatting because the bounded data table m_table is constructed in my code, not directly through data base.

DataGridView.Rows(0)Cells(0).Style.ForeColor=COLOR.BLACK

Code looks like

Dim rowText As DataRow = m_table.NewRow
rowText("Price Change")=10.00 'assign values to price change column

' there is no color formating for data table I wonder if cellformatting event can be used for this purpose. Would it slow down the load of datagridview? [URL]