In this guide, you will find the steps to set up stock value reduction.

In the menu, click Shop settings.
Click the Advanced tab.
Enable the toggle Activate stock depreciation.
Click the Submit button.
In the menu, click Item groups.
Click the button with the three dots in the top right.
Choose the option Stock depreciation settings.
Click Add new setting.
Enter the required details for this depreciation rule:
Name: A name for your own reference
Depreciation up to this maximum percentage of the purchase value: Enter the percentage to which you want to depreciate the stock in total.
Click Add new depreciation year to add the total number of years over which you want to depreciate.
Enter the percentage for each year showing how much you want to depreciate the stock, e.g. 10 or 20 (for 10% or 20%).
Note: This percentage is calculated based on the purchase price of the previous period, not the original purchase price. For example, if last year the purchase value was depreciated from 10 to 8, this year the percentage will be calculated on 8.Click Save.
In the menu, click Item groups.
Click the pencil icon for the relevant item group.
Select the desired depreciation rule in the field Depreciation of items in this item group.
Click Update.
In the menu, click Assortment.
Click the button with the three dots in the top right.
Click Export old stock list.
A new screen will appear. Find the date for which you want to create an export.
If desired, change the depreciation period to Yearly or Quarterly.
Click the download button next to the desired export.
In the menu, click Assortment.
Click View next to the relevant product.
Click the eye icon above the Purchase and sales history button (on the right).
Enter the purchase price you wish to use after depreciation.
Click the tick icon next to the input field.
The depreciation per product is applied immediately. If you reload the page, the date of the last depreciation will be visible. Export the stock list (see above) to view the depreciation.