9) Copy & Paste

<?php
/*
Plugin Name: My Table
*/
add_shortcode( 'mytable', 'myTableFun' );

function myTableFun( $atts ) {
    $a = shortcode_atts( 
        array(
            'cost' => '',
            'fee' => ''
            ), $atts 
        );
    $c = $a['cost'];
    $f = $a['fee'];

    $h = "<table id='rowfocus'>";

    $h .= "<caption>WordPress-Saratoga</caption>";

    $h .= "<tr><th>Number of Members</th>";

    $h .= "<th>Annual Fee</th></tr>";

    do {              
        $i++; $q = $c/$i;         
        $h .= "<tr><td>" . $i . "</td>";         
        $h .= "<td>" . "$";              
        $h .=  number_format($q,2);         
        $h .= "</td></tr>";         
        } while ($q > $f); 

    $h .= "</table>";      
    return $h;      
    }
th, td {text-align:right;}

th {
     background-color:green;
     color:white;
     }

rowfocus tr:hover {

background-color:#ddd; }

caption {font-size: 22px;text-align: center;}