All business details, messages and amounts are fictional teaching data. Use only these sources, preserve evidence IDs in a separate review sheet, and do not publish or send anything. Do not treat daily production as stock or a customer question as a confirmed order. Separate ordinary hours from dated exceptions. Never invent discounts, reviews, delivery promises or measured promotional impact.
NEW WEEK: use these fresh sources; do not carry forward November4-only exceptions. Produce a complete notice and replies to NQ1/NQ2. Compare new sales with the supplied baseline using total net and net per open day, without attributing changes to AI promotion. Korean then English.
[new facts]
evidence_id,fact
N1,2026-11-09 through 2026-11-13; regular Mon-Fri11:00-18:00 last order17:30.
N2,2026-11-11 fully closed for maintenance.
N3,Egg price KRW7000 effective2026-11-09; chicken KRW7500 and coffee KRW3000 unchanged. Chicken is available subject to stock.
N4,Pickup still requires staff confirmation; no free coffee; delivery unknown.

[new questions]
enquiry_id,question
NQ1,Is the egg sandwich still KRW6500?
NQ2,Can I pick up at noon on November11?

[new sales]
source_id,date,receipts,gross_krw,refund_krw
NS1,2026-11-09,18,126000,0
NS2,2026-11-10,22,154000,0
NS3,2026-11-12,24,168000,7000
NS4,2026-11-13,26,182000,0

[baseline]
source_id,date,receipts,gross_krw,refund_krw
S1,2026-10-26,20,130000,0
S2,2026-10-27,24,156000,0
S3,2026-10-28,22,143000,0
S4,2026-10-29,26,169000,13000
S5,2026-10-30,28,182000,0
