</li>
<li><a class="reference internal" href="#maintainers" id="toc-entry-6">Maintainers</a></li>
</ul>
</li>
</ul>
</div>
<div class="section" id="usage">
<h2><a class="toc-backref" href="#toc-entry-1">Usage</a></h2>
<p>Create a new invoice and add discounts in any of the three discount
fields given. They go in order of precedence so discount 2 will be
calculated over discount 1 and discount 3 over the result of discount 2.
For example, letâ€™s divide by two on every discount:</p>
<p>Unit price: 600.0