The range/attach categories are combined weighted by each category's real average selling price (live POS) — a point in an expensive category can't be out-earned by a point in a cheap one.
ASPH, Productivity and the upsell lines (premium/large wine, double spirits) are out of the total — shown as reference figures, not folded in as if they were the same as offering a side.
The headline blends the stable last-300-mains score with a faster recent-form line (~40 mains), so 2–3 strong shifts nudge the number without one bad shift swinging it.
Rather than scoring ASPH, we flag anyone scoring above their pub average while their own spend-per-head sits below it — a coaching prompt, not a penalty.