JSFiddle - React, Tailwind, and code Playground

by slace

HTML

<p>
    <input id="revenue" type="text" value="100000" />
    <span id="howmuch">
        <a href="" class="ka_button small_button small_cherry" target="_self" style="opacity: 1; ">
            <span>How Much?</span>
        </a>
    </span>
</p>
<p id="howmuchpercent">
    You save <span id="savingspercent">$<span id="howmuchspan">23000.00</span>*</span>
</p>

JavaScript

jQuery(document).ready(function(){
    jQuery('span#howmuch a').click(function(e){
        e.preventDefault();
        var revenue = jQuery('input#revenue').val();
        var savingsonrevenue = revenue * 0.23;
        jQuery('span#howmuchspan').text(savingsonrevenue.toFixed(2));
    });
});