Every breakdown row follows the chart's lead
Pick bounce rate above the traffic chart and all five lists below switch to percentages, bars and all. Pageviews and average time work the same way.

You open the traffic page with the last seven days loaded, then click bounce rate above the chart. The five lists below (pages, referrers, countries, devices, browsers) turn over at once. Each column header now reads bounce rate, and every row prints a percentage where a visitor count used to sit. No reload, no second click.
Credit goes to mnapoli, who carried the chart's choice down into the lists. Each of the ten rows in each list now arrives with four totals for visitors, pageviews, average time and bounce rate, all from the same Fathom calls as before, so it costs no extra requests. Bounce-rate bars now fill against a flat 100%, so 40% and 60% look different. Pageviews and average time still scale to the biggest row.
One catch. The lists still hold the ten rows with the most visitors, in that order. Pick bounce rate and you read it across your busiest pages, not your bounciest. A page with two visitors and a 100% bounce rate never gets a row.