This Visual Basic code takes the numeric values entered into three text boxes, sums them, and displays the total in a fourth text box. It then calculates the percentage of the total possible score and displays that in a fifth text box. Based on the percentage, a letter grade of I, II, III, or FAIL is displayed in a sixth text box.

4. Private Sub Command1_Click()
m = Val(Text2.Text)
e = Val(Text3.Text)
s = Val(Text4.Text)
Text5.Text = m + e + s
Text6.Text = (m + e + s) * 100 / 300
If Val(Text6.Text) >= 60 Then
Text7.Text = "I"
ElseIf Val(Text6.Text) >= 48 Then
Text7.Text = "II"
ElseIf Val(Text6.Text) >= 33 Then
Text7.Text = "III"
Else
Text7.Text = "FAIL"
End If
End Sub
CODE