Creating Customer Groups allows you to offer various discount levels to your members.
To do this CUSTOMERS>CUSTOMERS
At the top of the page click 'Create a Customer Group'
Once you have decided on your customer groups, scroll down to Storewide Discounts and apply the % value you have allowed for this customer group.
Example - 30% Customer Group
You also have the ability to offer fixed price discounts on items such as Members Products
Scroll down to Product Level Discounts
'Click' Create one now
The select the CATEGORY, and then select item you wish to offer the discount on
You can then select Fixed Price / Percentage Discount or Price Discount