Field help (HGHBKT) 

This check box can only be selected if the calculation of the product cost is based on an amount by fixed bracket.
When it is selected, the calculation takes into account the cost defined for the higher bracket when the lower bracket has been exceeded.

Example based on an amount of €5 every 100 liters (value = 5, quantity = 100, basis = volume, unit = liter).

Cost

 Liters
purchased

Case Higher
not checked

Case Higher
checked  

 100.

 5.

5.

 150.

 5.

10.

 200.

 10.

10.

 201.

 10.

15.