Hi,

Inherit the Existing Report Template

<?xml version="1.0" encoding="utf-8"?>
<odoo>
<template id="report_delivery_document_inherit_sale_stock" inherit_id="stock.report_delivery_document">
<xpath expr="//div[@name='div_sched_date']" position="after">
            <div class="row justify-content-end">
                <div class="col-auto">
                    <strong>Unit Price:</strong>
                    <p t-field="field value"/>

                    <strong>Total Price:</strong>
                    <p t-field="field value"/>

                    <strong>Tax:</strong>
                    <p t-field="field value"/>
                </div>
            </div>
        </xpath>
    </template>
</odoo>

Hope it helps