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I Built a Food Cost Calculator for Restaurants — Here's What I Learned About Menu Pricing

Restaurants operate on razor-thin margins — typically 3-5% net profit. Yet most restaurant owners I've talked to price their menu by gut feeling.

"The burger costs about $4 to make, similar places charge $14, so we'll charge $13." That's not pricing. That's guessing.

The Real Cost of Guessing

Here's what most restaurant owners miss:

1. Yield Loss

You buy 1kg of raw chicken. After trimming, deboning, and cooking, you have ~650g of usable meat. That's a 35% yield loss that most people don't factor into their cost per dish.

2. Waste & Shrinkage

Industry data says restaurants waste 4-10% of purchased food. That's money going straight to the trash — and it's invisible if you're not tracking it.

3. The "Popular But Unprofitable" Trap

Your best-selling dish might be your least profitable. Without calculating exact food cost per dish, you might be promoting items that lose money with every order.

Menu Engineering: A Framework That Works

Menu engineering is a real discipline used by successful restaurant chains. It categorizes every dish into 4 types:

Category Popularity Profitability Action
Stars High High Promote heavily
Plowhorses High Low Raise price or reduce cost
Puzzles Low High Better placement, rename
Dogs Low Low Remove from menu

Most independent restaurants have never done this analysis. When they do, it's eye-opening.

What I Built

I created a spreadsheet that does all of this:

Ingredients Database — Enter your ingredients with current costs. When prices change, update once and every recipe recalculates.

Recipe Costing — Break each dish into ingredients with quantities. Includes yield percentage adjustment (raw → cooked weight). Gives you exact cost per serving.

Menu Pricing — Shows food cost % per dish with color-coded alerts:

  • Green: under 30% (healthy)
  • Yellow: 30-35% (watch it)
  • Red: over 35% (losing money)

Plus automatic Star/Plowhorse/Puzzle/Dog categorization.

Waste Tracker — Log daily waste with reasons (expired, overproduction, damaged). See weekly and monthly totals. This single feature helps most restaurants save 2-5% on food costs.

The Numbers That Matter

Metric Target Reality (most restaurants)
Food cost % 28-32% 35-42%
Waste % Under 4% 6-10%
Menu items analyzed 100% 0%

A restaurant doing $500K/year in revenue with 38% food cost instead of 30% is leaving $40,000 on the table annually.

Try It

The spreadsheet is available in English and Portuguese (BR), works in Google Sheets and Excel.

Restaurant Menu Costing Calculator — $25

Includes: ingredient database (20 items pre-filled), recipe costing with yield %, menu engineering matrix, waste tracker, and dashboard.

For a restaurant owner, this pays for itself after catching one week of waste.


If you run a restaurant or food business, what's your current food cost percentage? Do you track it per dish or just overall? Curious to hear from people in the industry.

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