${Math.round(value.y)}
{format(value)} {size === "large" ? data[value].name : data[value].nameShort}

Source: Respective pricing pages (see links above), on (hover for quick relative time)
Prices are estimates, expecting that traffic is uniform during the month, and that the average size of a file is {averageSize}MB ({Math.ceil(fileCount)} files downloaded). Doesn't account for listings or deletions. Uploads are not using multipart.

Additional options and details It does account file count into the pricing maths, defaults to 1 file downloaded = GetObject op. I think that the ops pricing is just anti-spam measure.
Only affects Wasabi pricing.
{#each data as service} {/each}
Service Calculation method Result
{service.name} {service.price.toString().substring(service.price.toString().indexOf("=>") + 3)} ${Math.floor(service.price({ egress, fileCount, storage, dataRetention }))}/TB/month