Imports System
Public Class Program
Public Shared Sub Main()
Dim n As Decimal = 12345678.1234567
Console.WriteLine("F2: " & n.ToString("F2"))
Console.WriteLine("N2: " & n.ToString("N2"))
End Sub
End Class
' run:
'
' F2: 12345678.12
' N2: 12,345,678.12
'