# Lesson 2.2 · Loss and weight per portion

- Link: https://thomasalbert.fr/en/courses/get-started-with-chefbase-course-1-discovery/lessons/lesson-2-2-loss-and-weight-per-portion/
- Published: 2026-11-11T12:55:07+01:00
- Author: Thomas Albert

By default, the sheet stays simple: ingredients and quantities. To see loss, prices
and costs, switch on Expert mode.

 1. **Switch on “Expert mode”:** top right of the sheet. Loss, prices per kilo and 
    costs appear, as well as the Nutrition, Pricing and Balance tabs.
 2. **Enter the baking loss:** here 10%.
 3. **Read the result:** 572 g raw give 515 g cooked, so 51.5 g cooked per portion 
    for 10 portions.

**Key points:**

 * **The formula:** cooked weight = raw weight × (1 − loss).
 * **No baking:** leave the loss at 0%.
 * **Simple mode:** you can go back to it at any time.

![Switch on Expert mode](https://thomasalbert.fr/wp-content/uploads/2026/11/c1en-
slide-14.jpg)

![Set the loss, the weight follows](https://thomasalbert.fr/wp-content/uploads/2026/
11/c1en-slide-15.jpg)