A price reduction, usually about orders made in bulk, is known as promotional prices. Let's use a Sweatshirt as an example to make it clearer.
Example: You are a wholesaler for Sweatshirts. Your wholesale customers mainly fall into 2 categories, taking into consideration quantity and price.
Category 1
Customers in this category tend to buy between 1-20 sweatshirts. For these customers, you wish to sell each adapter at 30INR.
Category 2
Customers in this category buy between 21-25 sweatshirts. For these customers who buy in greater bulk, you may want to sell at a lower price per pair; 20INR.
This means that when an order contains more than 20 units, the price should drop automatically. Possible? Absolutely. Here are the steps you need to take to get this up and running.
Go to Inventory > Price Lists and click on Create New Price List.

Fill in the fields using the following format exactly. Refer to the screenshot below*
Price List Name: SALE (the range of the number of products to fall within this Promotional price, in numerics)
Price List Type: Choose to Sell, so it is available on Sales Orders.
Code: The same as in the Price List Name field.
If you wish to set up wholesale promotional prices, enter WHOLESALE into the fields instead of SALE.
Click Save.
You can then create the promotional prices for the next range: in this case, 20-25.

Click Create Price List.
Finally, you will need to create a Price List to cater to quantities that fall beyond these two ranges, i.e., for orders of more than 25 sweatshirts.
Once again, create a Price List and for the Name and Code fields, enter the SALE, with no numerical range attached. Click Save.
Next, go into your Inventory and click to edit the variant for the Sweatshirt.
You will see the price lists that you just created. Enter the prices you wish to have for each range.

Click Save Changes.
The promotional prices have now been set up for the Sweatshirt.
When you create a Sales Order for the Sweatshirt, select the promotional price you created from the dropdown selection for Price Lists first.
When you insert the order's quantity, the price will change according to the promotional price you created.
