Enter each item's monthly units, price, and plate cost. Get its class - star, plowhorse, puzzle, or dog - and the move to make.
Method (Kasavana-Smith): an item is "popular" if its units beat 70% of the average share (units x items / total), and "high margin" if its contribution (price - cost) beats the weighted average. Stars: protect. Plowhorses: raise margin (portion, price, cost). Puzzles: push placement and staff recs. Dogs: cut or reinvent. Not accounting advice.
One numbers breakdown, one rule that costs you money, one growth move. Three times a week, anonymous, free.