> ## Documentation Index
> Fetch the complete documentation index at: https://help.tiretutor.ai/llms.txt
> Use this file to discover all available pages before exploring further.
# Managing parts and wheel markups
> Create, edit, and remove cost-based markup tiers for parts and wheels without replacing existing sell prices.
Use this page when you need different margins for inexpensive and costly inventory items. Parts and wheels use separate sets of tiers, and the settings apply to one shop location at a time.
You need **Owner** or **Admin** access for the shop or its dealership.
A markup applies only when an item has a cost but no sell price. TireTutor keeps an existing sell price.
## Create a markup tier
**When:** A cost range needs its own fixed or percentage markup.
In the sidebar, under **Shop Settings**, select **Parts & Wheels Markups**.
Use **Parts Markup** for parts. Use **Wheels Markup** for wheels.
Select **Add Tier** in the correct section. The **Add Markup Tier** dialog opens.
Enter **Cost range min ($)** and **Cost range max ($)**. The tier matches a cost from the minimum up to, but not including, the maximum.
Choose a percentage or fixed amount. Enter the value to add to cost.
Select **Save Tier**.
After you review both sections, select **Save Changes**.
The **Review your pricing changes** dialog lists each change. Select **Confirm save** to apply them.
The new tier appears in the correct section. Its cost range does not overlap another tier.
## Build tiered markups
**When:** Less expensive items need a higher percentage than costly items.
Create a tier for your least expensive parts or wheels.
Select **Add Tier**. Set the new minimum equal to the previous maximum, for example 0–100 and then 100–500.
Use smaller percentages for costlier items when price competition is stronger.
Repeat the tiers without overlaps or gaps. A cost that matches no tier gets no automatic markup.
Select **Save Changes** after you review every range.
The **Review your pricing changes** dialog lists each change. Select **Confirm save** to apply them.
Each cost can match no more than one tier in **Parts Markup** or **Wheels Markup**.
## Edit a markup tier
**When:** A cost range or markup amount no longer fits your strategy.
Open **Parts & Wheels Markups**. The tier sits under **Parts Markup** or **Wheels Markup**.
Select the pencil icon in the tier's **Actions** column.
Keep the updated cost range separate from the other tiers.
Select **Save Tier**.
Select **Save Changes**.
The **Review your pricing changes** dialog lists each change. Select **Confirm save** to apply them.
The updated tier appears in its section. Existing sell prices remain unchanged.
## Remove a markup tier
**When:** You no longer want to use an existing markup tier.
Open **Parts & Wheels Markups**. The tier sits under **Parts Markup** or **Wheels Markup**.
Select the red trash can icon in the tier's **Actions** column.
Select **Save Changes**.
The **Review your pricing changes** dialog lists each change. Select **Confirm save** to apply them.
The section does not contain the removed tier. Existing sell prices remain unchanged.
## How a tier sets a sell price
When a new item has cost but no sell price, TireTutor finds the matching tier. A tier matches a cost from its minimum up to, but not including, its maximum. TireTutor adds that tier's fixed or percentage markup to cost.
For example, a $20 part with a 200% markup gets a $40 markup. TireTutor creates a \$60 sell price.
This calculation happens when TireTutor creates the sell price. The markup does not replace a sell price that already exists.
## Where to go next
Look up schemes, fields, rule conditions, and strategy options.
Follow a tire from distributor cost to installed price.