Having trouble getting a percentage in visual basic

Question

I keep getting an error when it come to getting a percentage as a part of a program.

The code is below as well as an image of the error pop up.

Also yes yes I know I can some up some code line and less variables but at this point I was desperate so I tried anything. Also sorry for my spelling.

I posted the code below. I hope you can see that I am using a service base database.

Public Class record
    Dim total As Integer
    Dim grade As Integer
    Dim letter As String
    Dim message As String
    Dim porcentaje As Decimal
    Dim budget As Integer
    Dim divider As Integer
    Private Sub AccountTableBindingNavigatorSaveItem_Click(sender As Object, e As EventArgs) Handles AccountTableBindingNavigatorSaveItem.Click
        Me.Validate()
        Me.AccountTableBindingSource.EndEdit()
        Me.TableAdapterManager.UpdateAll(Me.Database1DataSet)

    End Sub

    Private Sub record_Load(sender As Object, e As EventArgs) Handles MyBase.Load
        'TODO: This line of code loads data into the 'Database1DataSet.report' table. You can move, or remove it, as needed.
        Me.ReportTableAdapter.Fill(Me.Database1DataSet.report)
        'TODO: This line of code loads data into the 'Database1DataSet.budgetTable' table. You can move, or remove it, as needed.
        Me.BudgetTableTableAdapter.Fill(Me.Database1DataSet.budgetTable)
        'TODO: This line of code loads data into the 'Database1DataSet.accountTable' table. You can move, or remove it, as needed.
        Me.AccountTableTableAdapter.Fill(Me.Database1DataSet.accountTable)

    End Sub

    Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
        budget = BudgetNumericUpDown.Value
        divider = budget
        total = TotalNumericUpDown.Value
        porcentaje = total / divider
        grade = porcentaje * 100



        If grade < 59 Then
            letter = "F"
            message = "You have fail completly your budget goal please rethink your expenses"
            ReportTableAdapter.InsertQueryreport(grade, letter, message)
            Dim form1 As report
            form1 = New report
            form1.Show()
            Me.Hide()
        ElseIf grade >= 59 And grade < 69 Then
            letter = "D"
            message = "You have fail part of your budget goal please rethink your expenses a little more"
            ReportTableAdapter.InsertQueryreport(grade, letter, message)
            Dim form1 As report
            form1 = New report
            form1.Show()
            Me.Hide()
        ElseIf grade >= 69 And grade < 79 Then
            letter = "C"
            message = "You have achive the minimun of your budget goal you can do better"
            ReportTableAdapter.InsertQueryreport(grade, letter, message)
            Dim form1 As report
            form1 = New report
            form1.Show()
            Me.Hide()
        ElseIf grade >= 79 And grade < 89 Then
            letter = "B"
            message = "You completed more then enough of your budget goal "
            ReportTableAdapter.InsertQueryreport(grade, letter, message)
            Dim form1 As report
            form1 = New report
            form1.Show()
            Me.Hide()
        ElseIf grade >= 89 Then
            letter = "A"
            message = "You completed you budget goal perfectly congratulation please tell me your secret"
            ReportTableAdapter.InsertQueryreport(grade, letter, message)
            Dim form1 As report
            form1 = New report
            form1.Show()
            Me.Hide()
        End If
    End Sub

    Private Sub Button2_Click(sender As Object, e As EventArgs) Handles Button2.Click
        Dim form1 As deposit
        form1 = New deposit
        form1.Show()
        Me.Hide()
    End Sub

    Private Sub Button3_Click(sender As Object, e As EventArgs) Handles Button3.Click
        Me.Close()
    End Sub
End Class

Answer 1

The exception that is thrown when an arithmetic, casting, or conversion operation in a checked context results in an overflow. Source of msdn

you have declared your divider and total as integer and percentage as decimal. I think you should convert all your variables to decimal or integer..