Culinary & Baking Math
Intermediate

Yield Percentage

Usable food remaining after trimming and peeling.

Formula

Y=mediblempurchased×100Y = \frac{m_{edible}}{m_{purchased}} \times 100

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Variables

YYield (%)
m_{edible}Edible weight
m_{purchased}As-purchased weight

Example

7 kg edible from 10 kg: Y = 70%

How it works

Yield percentage tells you how much of the original food product is still usable after trimming, peeling, deboning, or other preparation losses. It works by comparing the edible mass to the mass you bought, then converting that fraction into a percent so you can easily see the usable portion of the total. A higher yield means less waste and a lower true cost per usable amount.

When to use it

Use this in food service, recipe costing, and kitchen inventory when you need to estimate how much usable product you will get from raw ingredients. It is especially helpful for produce, meats, and seafood that require cleaning or trimming before cooking.

Worked example, step by step

A restaurant buys 12 kg of whole carrots. After peeling and trimming, 9.6 kg is left usable. Use the formula: Y = (m_edible / m_purchased) × 100 Substitute the values: Y = (9.6 / 12) × 100 Calculate the fraction: 9.6 ÷ 12 = 0.8 Convert to a percentage: 0.8 × 100 = 80 Final answer: Yield percentage = 80%

Common mistakes to avoid

  • Using the trimmed waste weight instead of the edible weight in the numerator
  • Forgetting to multiply by 100, which leaves the answer as a decimal instead of a percent
  • Mixing units, such as using grams for one value and kilograms for the other

Did You Know?

A whole beef tenderloin can lose 40% of its weight to trimming before it reaches the plate.

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Reviewed & maintained by the FormulaWon editorial teamLast reviewed September 2026