in zuul-status/zuul-status.js [272:283]
_progressPercent(jobs) {
if (!jobs || !jobs.elapsed_time && !jobs.remaining_time) {
return '';
}
let progressPercent = 100 * (jobs.elapsed_time / (jobs.elapsed_time +
jobs.remaining_time));
this.updateStyles({'--progress-bar-width': `${progressPercent}%`});
return progressPercent;
}