https://author.today/work/genre/all

ratio.js

Array.prototype.slice.call(document.querySelectorAll('.book-row')).forEach($book => {
    const stats = $book.querySelector('.book-stats');
    
    if ( stats ) {
        const views = Number(stats.firstElementChild.dataset.hint.replace('Просмотры · ', '').replace(/ /g, ''));
        const likes = Number(stats.firstElementChild.nextElementSibling.dataset.hint.replace('Понравилось · ', '').replace(/ /g, ''));
        const $info = document.createElement('span');
        const ratio = Math.floor(views/likes);
        
        //console.log(ratio);
        
        $info.textContent = Math.floor(views/likes);
        $info.style.fontWeight = 'bold';
        if ( ratio < 50 ) {
            $info.style.color = 'green';
        }
        
        if ( ratio > 100 ) {
            $book.style.display = 'none';
        }
        
        stats.insertBefore($info, stats.firstElementChild);
    }
})