Nice comments, Jackson.
I consider %27 labor cost on the high side for a profitable cafe. While in start-up mode and with relatively low retail sales, you might plan for that level, once the business gross increases, the labor percentage should drop. If it doesn't, the management should consider retail price increases and labor scheduling and efficiencies.
23;
The current business owner likely told you their pricing policy and has no real clue about the detail one actually requires to effectively operate a cafe. Just look at Andrew's and Jackson's comments and you see what I mean. The seller may not have much business acumen, but if you do not put more into it than they do, you cannot expect real business growth when you take over management. That said, they likely mark up %300 (3 times cost = retail price) and therefore EXPECT %33 food cost. It is therefore unlikely that they have considered waste, packaging, sampling, etc. and likely the ACTUAL YIELD (follow Jackson's math) COGS is overstated.
Your beverage COGS can easily end up within a few points of projections/ideal, unless you experience high waste from discarding coffee that went stale/cold/cooked from idling too long after brewing.
Food COGS varies based on your food prep concept/concepts, sampling, freshness standards, and waste. Furthermore, the labor cost varies in relation to food cost depending on prep method/concept.
If we take as given: food quality will improve if COGS is increased to improve ingredient quality, and imagine that (although several ingredient quality levels are available for each concept) the following cases are for equal ingredient quality. "Scratch" baking and food prep has the lowest food cost (but relatively high labor man-hours, and higher labor/hour rate). Frozen dough, frozen par-baked, frozen pre-baked all have lower labor and somewhat higher COGS with less skilled labor requirements. Off-site fully prepared foods have lowest labor cost, highest Food COGS, and usually highest shrink from waste.
Since COGS expressed as a % of gross sales also depends on retail pricing, the many business strategies have different end results. I have seen cafes operating effectively with as little as %24 to as high as %60
COGS for food category. Needless to say, I have also seen operators with actual yield including waste at %60-%80-%110.
I hope this gives you some pause to consider your plan carefully. Keep in mind that these comments and numbers are generally speaking and do not necessarily apply directly to your business.
Good luck, but good planning too.