Placarua: a fuel-price dashboard for the local market

Field notes

Placarua describes a four-step pricing routine for fuel stations: define a competitive area, record rival prices by product, enter a load invoice, and review a suggested pump price. Its stated cost calculation includes freight and taxes and follows mixed tank inventory rather than simply copying the latest invoice. The page also gives a concrete scale example: five cents across 120,000 monthly liters becomes about R$6,000, while weak-signal collection is said to synchronize when connectivity returns.