Where do restaurants lose money without noticing?
What a Z report is for
A Z report closes the day: it totals sales, resets the counters, and produces the figure that goes into your books. Unlike an X report — a snapshot you can take at any time — a Z report is final.
It matters because it is the record that has to reconcile against cash in the drawer and card settlements. A daily Z that nobody checks against actual cash is precisely how shortfalls stay invisible.
The four numbers to watch
Food cost as a share of revenue, labour cost as a share of revenue, average ticket, and covers per shift. Together they explain almost every change in profitability.
Revenue alone is the number people watch and the least informative of the set. A busy month with rising food cost can be less profitable than a quiet one — and revenue will not tell you that.
What a kitchen display changes
It removes the paper ticket and the ambiguity around it. Orders arrive timestamped, in sequence, and their state is visible — which turns "is table six done?" from a shouted question into something anyone can see.
The measurable effect is on ticket time, which governs table turnover and therefore revenue per shift. That is the number to watch if you want to know whether it was worth it.
