Advance Pricing : Lumpsum as application method, Break Type - Recurring

Hi All,

Does anyone has any document which explains  calculation of unit price on sales order  when the application method  is " Lumpsum" and the qty is given in Range.

Ex: Modifier is defined as below

Qty             Volume Type                 Lumpsum                   Break Type

1-10            Item Qty                         10                                Recurring

11-20           Item Qty                         20                               Recurring

21-30           Item Qty                          30                              Recurring

How the unit price is calculated on the sales Order.

Thanks,

Regards,

Yogesh