ALEQ has two modes of operation depending on whether a currency or weight setting is selected on the Settings > Units menu page. The decision depends on whether it is intended to achieve either:
A weight estimate of a particular commodity that is distributed over an Area or along the length of a Path. This typically could be weight of fertilizer or lawn seed distributed over an area or the weight of cabling used along the length of a path.
A monetary quotation for a project where it is possible to specify cost parameters linked to the area value of geographical areas or the length value of geographical paths. This typically could be the costs involved in surfacing roads and installing kerbing or installing a new lawn and drainage channels.