JSFiddle - React, Tailwind, and code Playground

HTML

<table onload="updtot()">
    <tr>
        <td colspan=3>
             <h2>Revenue Sources</h2>

        </td>
    </tr>
    <tr>
        <td>
            <label for="population">Eligible Population</label>
        </td>
        <td colspan=2>
            <input id='population' type="number" value='150510000' />
        </td>
    </tr>
    <tr>
        <td>
            <label for="totalincome">Total Personal Income</label>
        </td>
        <td>
            <input id='totalincome' type="number" value='13401868693000' />
        </td>
        <td>
            <input id='incomeTax' type="range" value=30 min=0 max=100 onchange='$("#incomeTaxDisplay").val(this.value);SetIncomeTaxRev(this);updtot();' style='width:100px;' />
            <input id='incomeTaxDisplay' type="number" min="0" max="100" style='width:50px;' value='30' onchange='$("#incomeTax").val(this.value);SetIncomeTaxRev(this);updtot();' />%</td>
    </tr>
    <tr>
        <td>
            <label for="IncomeTaxRev">Income Tax Revenue</label>
        </td>
        <td colspan=2>
            <input id='IncomeTaxRev' value=0 type="number" disabled='disabled' />
        </td>
    </tr>
    <tr>
        <td>
            <label for="TotalHHCon">Total Household Consumption</label>
        </td>
        <td>
            <input id='TotalHHCon' type="number" value='10729000000000' />
        </td>
        <td>
            <input id='ConTax' type="range" value=0 min=0 max=100 onchange='$("#ConTaxDisplay").val(this.value);SetConTaxRev(this);updtot();' style='width:100px;' />
            <input id='ConTaxDisplay' type="number" min="0" max="100" style='width:50px;' value='0' onchange='$("#ConTax").val(this.value);SetConTaxRev(this);updtot();' />%</td>
    </tr>
    <tr>
        <td>
            <label for="RealSalesTax">Real Sales Tax</label>
        </td>
        <td colspan=2>
            <input id='RealSalesTax' value='0' type="number" disabled='disabled' style='width:50px' />%</td>
    </tr>
    <tr>
       ...

CSS

h2 {
        font-weight:bold;
    }
    td {
        border: solid black 1px;
        padding: 5px;
    }
    .TaxDetails {
        width:100px;
    }

JavaScript

$(function () {
    $( "#incomeTax" ).change();
    $( "#ConTax" ).change();
    $( "#CorpTax" ).change();
    
});

function SetCorpTaxRev(elem) {
    $("#CorpTaxRev").val(
    parseFloat(parseFloat($("#TotalCorpCon").val()) * parseFloat(elem.value) * 0.01));

}

function SetConTaxRev(elem) {
    $("#ConTaxRev").val(
    parseFloat(parseFloat($("#TotalHHCon").val()) * parseFloat(elem.value) * 0.01));
    $("#RealSalesTax").val(
    (((elem.value * 0.01) / (1 - elem.value * 0.01)) * 100).toFixed(2));
}

function SetIncomeTaxRev(elem) {
    $("#IncomeTaxRev").val(
    parseFloat(parseFloat($("#totalincome").val()) * parseFloat(elem.value) * 0.01));

}
function starttot(){
    ("#incomeTaxDisplay").val("#incomeTax");
   SetIncomeTaxRev("#IncomeTaxRev") ;
   SetCorpTaxRev("#CorpTaxRev");
   updtot();
}
function updtot() {
    $("#TotalRevenue").val(
    parseFloat($("#IncomeTaxRev").val()) + parseFloat($("#ConTaxRev").val()) + parseFloat($("#CorpTaxRev").val()));

    $("#RevForBI").val(
        parseFloat($("#TotalRevenue").val()) - parseFloat($("#FedSpending").val())
    );
       
    CalcAnnualBI();
    CalcAnnualBIcons();
    CalcPercentGDP();

    CalcTotalPersonalIncome();
    CalcEffTax();
    CalcMaxConsumption();
}

function CalcAnnualBI() {
    if( $("#RevForBI").val() > 0 ) {
        $("#AnnualBiBene").val(
            (parseFloat($("#RevForBI").val()) /
             parseFloat($("#population").val())).toFixed(2));
    }
    
}

function CalcAnnualBIcons() {
    $("#AnnualBiCons").val(
    (parseFloat($("#AnnualBiBene").val()) * (1 - parseFloat($("#ConTax").val()) * 0.01)).toFixed(2));
}

function CalcPercentGDP() {
    $("#PercentGDP").val(
    (parseFloat($("#TotalRevenue").val()) / parseFloat($("#AnnualGDP").val())).toFixed(3) * 100

    );
}

function CalcTotalPersonalIncome() {
    $('input[name=TotInc]').each(function (i) {
        $(this).val(
        (parseFloat(
        $(this).parent('td').prev('td').children('input').val()) * (1 -...