User Guide

Click "Add a New specific price", and a form appears. Complete it and click
on "Add quantity discount".
 The first row of selectors enables you to be very specific about the
various groups this price applies to, with currencies, countries and
even your custom customer groups (which we'll talk about later on).
 You can define a ranger of dates between which the price is active,
using the second row. Clicking each selector will open a calendar, so
as to ease the process.
 Starting at [] unit. Contains the value from which the discount
should be applied. Default is "1", which means any quantity.
 The "Product price" enables you to set an arbitrary price,
independent of calculations and previous prices. Keep this field to
"0" to use the default price.
 Apply a discount of. The discount that will be applied once the
quantity is selected. Use the selector to set the type of discount
(either an amount in the default currency, or a percentage of the
default price).