Virmach valuation

// unobfuscated from https://virmach.app/ , retrieved on 2020-12-09 01:20 UTC
// original script archived at https://web.archive.org/web/20201208225523js_/https://virmach.app/src.a918aee7.js

function valuation(input) {
    var price = Number(input['price'].match(/\d[\d.]*/)[0]);
    var value = (5 * input['cpu'] + Number(input['ram']) / 1024 * 3 + input['hdd'] * (5 - Math.log(input['hdd']) / 3.0081547935525483) / 10 + 4 * (input['ips'] - 1)) / (input['virt'].match(/KVM/i) ? 1 : 2);
    value *= 1.05,
    input['ram'] < 256 && (value *= 0.8),
    input['ram'] < 512 && (value *= 0.85),
    input['ram'] < 1024 && (value *= 0.9),
    input['hdd'] < 5 && (value *= 0.25),
    input['bw'] < 200 && (value *= 0.25);
    var percentOff = 100 - Math.floor(price / value * 100)
      , annotation = '';
    return !(annotation = percentOff >= 65 ? 'best' : percentOff >= 45 ? 'great' : percentOff >= 35 ? 'good' : percentOff >= 20 ? 'average' : '') && price <= 8.5 && (annotation = 'cheap'),
    input['bw'] < 200 && (annotation = ''),
    {
        'price': price,
        'percentOff': percentOff,
        'value': value,
        'annotation': annotation
    };
}