# Why are fees shown beside bytes?

BTI counts every transaction's fee with its size, and a token's fee share follows its byte share.

URL: https://blockspace.wiki/answers/why-are-fees-shown-beside-bytes/

[BTI](https://blockspace.wiki/glossary/bti/) counts every transaction's raw size, virtual size, weight and fee. When it writes [the books](https://blockspace.wiki/glossary/the-books/), fees follow bytes: a token's share of a transaction's fee follows its share of that transaction's bytes. So each token row can carry the fees its transactions paid beside the bytes they bought, divided by the same shares, as the heaviest tokens API does.

Sources:

- block.space docs: BTI · https://block.space/docs/bti
- Blockspace Co. records
- block.space heaviest tokens API (every kind of token, with bytes, vbytes and fees per book) · https://block.space/api/heaviest

Updated: 2026-10-21