> ## Documentation Index > Fetch the complete documentation index at: https://docs.brickyfi.com/llms.txt > Use this file to discover all available pages before exploring further. # Collections > How to manage collections pages ## For Sale This collection displays all products currently on sale. Products that appear on a yellow background are **those offered for sale at an insufficient price** (compared to the market price) ### Data Price at which you must buy the item in order to sell it at the `selling price` and obtain a `margin` defined in [settings](/lg-english/settings).

$purchase\,price = \frac{selling\,price}{margin+1}$

**For items in your collections (except for wishes)** this is the price at which you purchased the item. Item value according to the average of similar items for sale on Bricklink®. When no copies are for sale on Bricklink®, [Brickyfi uses ChatGPT](/lg-english/faq#brickyfi-uses-ai) to provide a price estimate. Price at which you will have to sell the item (according to the `discount` rate defined in [settings](/lg-english/settings)).

$selling\,price = market\,price * discount$

If you have activated the `shops fees` parameter:

$selling\,price = market\,price * discount - fees$

**For figurines** it is equal to the `Market price`:

$selling\,price = market\,price$

The `margin price` is the price at which you must sell the item purchased at the `purchase price` to obtain a `margin rate` defined in [settings](/lg-english/settings).

$margin\,price = purchase\,price * (1+margin)$

The `for sale price` is the price at which you put the item up for sale. The `profit` is the profit you will make by buying the item at the `purchase price` and selling it at the `selling price`.

$profit = selling\,price - purchase\,price$

**For the for sale items** this is the profit you will make by selling at `for sale price` the item purchased at `purchase price`.

$profit = for\,sale\,price - purchase\,price$

**For sold items** this is the profit you made by selling at `sold price` the item purchased at `purchase price`.

$profit = sold\,price - purchase\,price$

## Owned This collection displays all the products you own (and which are not to be restored or [for sale](#for-sale)). Products that appear on a yellow background are **those whose recommended selling price is higher than the margin** ### Data Price at which you must buy the item in order to sell it at the `selling price` and obtain a `margin` defined in [settings](/lg-english/settings).

$purchase\,price = \frac{selling\,price}{margin+1}$

$selling\,price = market\,price * discount$

If you have activated the `shops fees` parameter:

$selling\,price = market\,price * discount - fees$

**For figurines** it is equal to the `Market price`:

$selling\,price = market\,price$

The `margin price` is the price at which you must sell the item purchased at the `purchase price` to obtain a `margin rate` defined in [settings](/lg-english/settings).

$margin\,price = purchase\,price * (1+margin)$

The `profit` is the profit you will make by buying the item at the `purchase price` and selling it at the `selling price`.

$profit = selling\,price - purchase\,price$

**For the for sale items** this is the profit you will make by selling at `for sale price` the item purchased at `purchase price`.

$profit = for\,sale\,price - purchase\,price$

**For sold items** this is the profit you made by selling at `sold price` the item purchased at `purchase price`.

$profit = sold\,price - purchase\,price$

The `yield rate` is the percentage margin for an item bought at `purchase price` and sold at `selling price`.

$yield\,rate = \frac{profit}{purchase\,price}*100$

**For sold items** The `yield rate` is the margin percentage for an item bought at `purchase price` and sold at `sold price`.

$yield\,rate = \frac{profit}{purchase\,price}*100$

## Sold This collection displays all the products you have sold. ### Data Price at which you must buy the item in order to sell it at the `selling price` and obtain a `margin` defined in [settings](/lg-english/settings).

$purchase\,price = \frac{selling\,price}{margin+1}$

**For items in your collections (except for wishes)** this is the price at which you purchased the item. Item value according to the average of similar items for sale on Bricklink®. When no copies are for sale on Bricklink®, [Brickyfi uses ChatGPT](/lg-english/faq#brickyfi-uses-ai) to provide a price estimate. Price at which you sold the item. The `profit` is the profit you will make by buying the item at the `purchase price` and selling it at the `selling price`.

$profit = selling\,price - purchase\,price$

**For the for sale items** this is the profit you will make by selling at `for sale price` the item purchased at `purchase price`.

$profit = for\,sale\,price - purchase\,price$

**For sold items** this is the profit you made by selling at `sold price` the item purchased at `purchase price`.

$profit = sold\,price - purchase\,price$

The `yield rate` is the percentage margin for an item bought at `purchase price` and sold at `selling price`.

$yield\,rate = \frac{profit}{purchase\,price}*100$

**For sold items** The `yield rate` is the margin percentage for an item bought at `purchase price` and sold at `sold price`.

$yield\,rate = \frac{profit}{purchase\,price}*100$

Store where you sold the item. ## To Restore This collection displays all the products you own but which require restoration because they are incomplete... Products in this collection are not taken into account in calculations (except for purchase price). ### Data Price at which you must buy the item in order to sell it at the `selling price` and obtain a `margin` defined in [settings](/lg-english/settings).

$purchase\,price = \frac{selling\,price}{margin+1}$

$selling\,price = market\,price * discount$

If you have activated the `shops fees` parameter:

$selling\,price = market\,price * discount - fees$

**For figurines** it is equal to the `Market price`:

$selling\,price = market\,price$

The `profit` is the profit you will make by buying the item at the `purchase price` and selling it at the `selling price`.

$profit = selling\,price - purchase\,price$

**For the for sale items** this is the profit you will make by selling at `for sale price` the item purchased at `purchase price`.

$profit = for\,sale\,price - purchase\,price$

**For sold items** this is the profit you made by selling at `sold price` the item purchased at `purchase price`.

$profit = sold\,price - purchase\,price$

The `yield rate` is the percentage margin for an item bought at `purchase price` and sold at `selling price`.

$yield\,rate = \frac{profit}{purchase\,price}*100$

**For sold items** The `yield rate` is the margin percentage for an item bought at `purchase price` and sold at `sold price`.

$yield\,rate = \frac{profit}{purchase\,price}*100$

## Wishes This collection displays all the products you wish to purchase. ### Data Official LEGO® selling price. Item value according to the average of similar items for sale on Bricklink®. When no copies are for sale on Bricklink®, [Brickyfi uses ChatGPT](/lg-english/faq#brickyfi-uses-ai) to provide a price estimate. **Displayed only if you have activated the parameter** `shops fees`.
This is the price displayed on selling platforms that charge fees to buyers, such as Vinted or Leboncoin. As a buyer, you'll have to pay this price plus the `fees`.

$listed\,price = purchase\,price - fees$

Price at which you must buy the item in order to sell it at the `selling price` and obtain a `margin` defined in [settings](/lg-english/settings).

$purchase\,price = \frac{selling\,price}{margin+1}$

**For items in your collections (except for wishes)** this is the price at which you purchased the item.