How to calculate a masked textbox field?

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ASP.NET

jQuery

I have a web form that has textboxes for calculation. I have two textboxes for subtration and three for adding. I am using jquery to mask the textboxes for money value. THe textboxes work with out the masked being there. The calculation is correct for the textboxes. I just added the jquery to the code to mask the textboxes and it works but the calculations has stopped working. How can I fix this?

Masking code:

<script src="Scripts/jquery-2.1.1.min.js" type="text/javascript"></script>
    <script src="Scripts/jquery.maskMoney.js" type="text/javascript"></script>
    <script type='text/javascript'>
        $(document).ready(function () {
            $("#TextBoxTROA").maskMoney();
            $("#TextBoxInstr").maskMoney();
            $("#TextBoxRes").maskMoney();
            $("#TextBoxPubS").maskMoney();
            $("#TextBoxAcad").maskMoney();
            $("#TextBoxStudS").maskMoney();
            $("#TextBoxInstiS").maskMoney();
            $("#TextBoxOperM").maskMoney();
            $("#TextBoxAuxE").maskMoney();
            $("#TextBoxHosS").maskMoney();
            $("#TextBoxLYIndeO").maskMoney();
            $("#TextBoxOED").maskMoney();
            $("#TextBoxTA").maskMoney();
            $("#TextBoxTL").maskMoney();
            $("#TextBoxTUNA").maskMoney();
            $("#TextBoxETRNA").maskMoney();
            $("#TextBoxNPRNA").maskMoney();
            $("#TextBoxTR").maskMoney();
            $("#TextBoxTFN").maskMoney();
            $("#TextBoxCD").maskMoney();
            $("#TextBoxLTD").maskMoney();
            $("#TextBoxSFEDA").maskMoney();
            

        });
    </script>

Calculation codes:

protected void TextBoxTA_TextChanged(object sender, EventArgs e)
    {
        if (!string.IsNullOrEmpty(TextBoxTA.Text) && !string.IsNullOrEmpty(TextBoxTL.Text))
            TextBoxTNA.Text = (Convert.ToInt64(TextBoxTA.Text) - Convert.ToInt64(TextBoxTL.Text)).ToString();
        TextBoxTL.Focus();
    }

    protected void TextBoxTUNA_TextChanged(object sender, EventArgs e)
    {
        if (!string.IsNullOrEmpty(TextBoxTUNA.Text) && !string.IsNullOrEmpty(TextBoxETRNA.Text) && !string.IsNullOrEmpty(TextBoxNPRNA.Text))
            TextBoxTNA2.Text = (Convert.ToInt64(TextBoxTUNA.Text) + Convert.ToInt64(TextBoxETRNA.Text) + Convert.ToInt64(TextBoxNPRNA.Text)).ToString();
        TextBoxETRNA.Focus();
    }

    protected void TextBoxETRNA_TextChanged(object sender, EventArgs e)
    {
        if (!string.IsNullOrEmpty(TextBoxTUNA.Text) && !string.IsNullOrEmpty(TextBoxETRNA.Text) && !string.IsNullOrEmpty(TextBoxNPRNA.Text))
            TextBoxTNA2.Text = (Convert.ToInt64(TextBoxTUNA.Text) + Convert.ToInt64(TextBoxETRNA.Text) + Convert.ToInt64(TextBoxNPRNA.Text)).ToString();
        TextBoxNPRNA.Focus();
    }
 protected void TextBoxTL_TextChanged(object sender, EventArgs e)
    {
        if (!string.IsNullOrEmpty(TextBoxTA.Text) && !string.IsNullOrEmpty(TextBoxTL.Text))
            TextBoxTNA.Text = (Convert.ToInt64(TextBoxTA.Text) - Convert.ToInt64(TextBoxTL.Text)).ToString();
        TextBoxTUNA.Focus();
    }

    protected void TextBoxNPRNA_TextChanged(object sender, EventArgs e)
    {
        if (!string.IsNullOrEmpty(TextBoxTUNA.Text) && !string.IsNullOrEmpty(TextBoxETRNA.Text) && !string.IsNullOrEmpty(TextBoxNPRNA.Text))
            TextBoxTNA2.Text = (Convert.ToInt64(TextBoxTUNA.Text) + Convert.ToInt64(TextBoxETRNA.Text) + Convert.ToInt64(TextBoxNPRNA.Text)).ToString();
        TextBoxTR.Focus();
    }

Please Help!!1