Set a SKU discount in the admin catalogue
Open the Discount field's edit icon in Manage Default Pricing to set a SKU's discount and see it applied to the Selling Price and quotation.
In the admin catalogue, a SKU's discount is set behind the Discount field's edit icon in Edit SKU Properties > Pricing (Sales Channel) > Manage Default Pricing (the field itself is read-only).
The 'Update Discount' dialog has Discount, Discount Type (Percentage / Absolute), Max Absolute Discount Enabled (True / False), Max Absolute Discount and Max Percentage Discount.
The Selling Price shows the discounted price (262.22 less 10 % = 236.00).
The quotation prices the item at 262.22 and shows the discount separately.