To encourage shoppers to purchase more and in higher quantities, merchants will often offer quantity discounts on certain products, also known as bulk pricing. Bulk pricing involves offering a particular item or group of items at a lower price based on the number ordered. This is particularly useful to wholesalers and merchants who sell items that are typically bought in large quantities.
We can add this during the creation or updation of a product in Bigcommerce
In this manner we can set different tiers of bulk pricing .