[RESOLVED] Coloring Text after percentage calculation

[sparrow1]

Hello,

I'm calculate the persentage between two numbers.
After the calculation I want that the positive numbers are green and the others red.

It's working good, but the numbers -0.25 are still green instead of red.
How can I change that?

Here's my code for calculation and coloring the text:

  Dim C1 As String = TextBox11.Text
        Dim D1 As String = TextBox1.Text
        Dim percentage As Decimal = Val(D1 - C1) / C1 * 100

        TextBox16.Text = String.Format("{0:0.00}", percentage) & " " & "%"

        If Val(TextBox16.Text) >= 0.00 Then

            TextBox16.Font = New Font("Adobe Devanagari", 11.0, FontStyle.Bold)
            TextBox16.ForeColor = Color.DarkGreen
        Else

            TextBox16.Font = New Font("Adobe Devanagari", 11.0, FontStyle.Bold)
            TextBox16.ForeColor = Color.Red
           
        End If

Thanks in advance,