Rev.com browser console stats

stats.js

$rows = $('#orders-history tbody tr');

// Sum the cost of all orders placed.
costTotal = [].reduce.call($('td:nth-child(7)', $rows).map(function(i, el) { return Number(el.innerHTML.replace(/[^0-9\.]+/g, "")); }), function(sum, current) { return sum + current; })

// Average audio file duration
avgDuration = costTotal / $rows.length;

console.log("Total cost: $" + costTotal);
console.log("Average call duration: " + avgDuration + "m");