As a seller you can set Wholesale discounts on a Store level.
Here is how you can set Wholesale discounts to your store
From the left panel in your dashboard go to Online store -> Discounts -> Wholesale Discounts -> Add Slab
Click on Add Slab to Create a discount Slab
Checkbox Enabled to make discount slabs available for your customers
Storewide discount slabs are managed all at one place under Wholesale Discounts section