The whole Potbelly filing, read.

POTBELLY FRANCHISING, LLC's 2026 Franchise Disclosure Document, read for someone about to sign, with every figure cited to the page it came from.

Every fee. 43 rows for Potbelly: initial, royalty, advertising, technology, transfer, renewal, audit, late, termination. The brand page shows the two headline rates; the report shows all of them.
Item 19, decoded. What the revenue figure measures, which units are in the sample and which were left out, and what it doesn't include.
Three years of units. Openings, terminations, non-renewals, reacquisitions, transfers, and whether the filing's own totals foot.
Every lawsuit, in plain words. Item 3 and Item 4, one line per matter.
Territory, renewal, transfer, termination. What is protected, what it costs to renew or sell, what they can terminate you for, and the non-compete.
The questions to ask existing franchisees that this filing's own numbers raise.

From the report · every fee · the first 7 of 43 rows

Successor franchise fee (paid in 2025)	$5,000 to $10,000 received in fiscal 2025	p. 15
Asset transfer fee	$5,000	p. 15
Sublease security deposit	Estimated $1,900 to $45,000, refundable	p. 15
Architectural review fee	$2,000	p. 18
Successor franchise fee	25% of then-current initial franchise fee	p. 19
Transfer — non-controlling	$500	p. 19
Transfer — convenience of ownership	$500	p. 19

This is a summary of a public filing, not legal advice. Take the filing to a franchise attorney before signing. The free brand page stays free; the report is the rest of the document.