The price manager will allow you set a new price level by adding or subtracting a percentage of the sell or cost price. You can then assign this new price level to different customer types. In the example below, I've set-up a 100% markup on the cost price for each product for a customer type called 'Wholesale Test'. This is assigned in the 'Applicable Customer Types' field.
Once configured, you can view the price book and this price level will be assigned to all products for this customer type.
Note that the Price Levels feature allows you to only set an entire price level to a customer. Also, do not select 'Fill Prices' unless you want the default price for every customer to be this new price level. It is not recommend to do this.
Option 2: Special Price
This option allows you to set individual product prices for customers. In other words, you can set a specific price for a specific product for a specific customer.
Click on 'Modules' then select 'Price Manager' from the drop down list, then 'Special Prices'.
Restrict to field 1: You can set the special price to apply to all customers, a particular customer using their account number, or a particular customer type.
Restrict to field 2: Set the special price to apply to all products, a category of products or an individual product using the product code.
Minimum Quantity: Applies the price based on the quantity. If you want to set price breaks, you can set a rule for a quantity of 1, then a new rule for a quantity of 10, and so on.
Start Date: Select the date the special price will apply from.
End Date: Set this a long time in the future unless you want it to it expire on a particular date.
Calculation: Set the special price based on a percentage or value in relation to the current price, cost price, sell price or contract price.
Click 'Save' to complete the set-up and then go ahead and test it.
Important Note: You need to set-up one Price Level to activate the Special Price level as being a 'special price' module, it will use the standard sell price if the the special price is set higher than it. To fix this, set-up a price level that is 100% or more of the standard price.