Format Result of Textbox "0.00"

[ChrisOK]

Does anyone know how to fix this to show the result within the textbox like this: "0.00"

Right now, it appears like this: "252525."
I'm new to VBA and am trying to piece this together properly...
Everything seems to work great - except for this format problem...

Sub MyCalcQu()
    If IsNumeric(TextBox7.Text) Then
    If IsNumeric(TextBox8.Text) Then
    If IsNumeric(TextBox13.Text) Then
        TextBox3.Value = CDbl(TextBox7.Value) + CDbl(TextBox8.Value) + CDbl(TextBox13.Value)

'format the contents of the TextBox3 result
        TextBox3.Value = Format(TextBox7.Value + TextBox8.Value + TextBox13.Value, "0.00")
    
    End If
    End If
    End If
End Sub

Private Sub TextBox7_Change()
    MyCalcQu
End Sub
Private Sub TextBox8_Change()
    MyCalcQu
End Sub
Private Sub TextBox13_Change()
    MyCalcQu
End Sub

Thanks! Chris