Each point is an actual calendar date. The blue line follows that date's lowest reported price; vertical capped ranges extend to the highest price reported across branches. A flat line means the daily low stayed the same.
The daily low and high are equal on every date, so each range cap sits on the flat line.
Identical observations are grouped and shown with their count; each displayed price and branch remains distinct.
| Date | Retailer · branch | Regular | Promo | Discount | Observed | Matching observations |
|---|