product_visible_discount/product_visible_discount_view.xml

<?xml version="1.0"?>
<openerp>
    <data>

        <!-- Product price list -->
        <record model="ir.ui.view" id="product_pricelist_view_tree">
            <field name="name">product.pricelist.tree</field>
            <field name="model">product.pricelist</field>
            <field name="inherit_id" ref="product.product_pricelist_view_tree"/>
            <field name="arch" type="xml">
                <field name="currency_id" position="before">
                    <field name="visible_discount"/>
                </field>
            </field>
        </record>

        <record model="ir.ui.view" id="product_pricelist_view_form">
            <field name="name">product.pricelist.form</field>
            <field name="model">product.pricelist</field>
            <field name="inherit_id" ref="product.product_pricelist_view"/>
            <field name="arch" type="xml">
                <field name="currency_id" position="before">
                    <field name="visible_discount"/>
                </field>
            </field>
        </record>

    </data>
</openerp>