Work out vending machine restock instantly with clear inputs, formula shown and shareable results.
Restock frequency is usable capacity divided by daily sales, where usable capacity excludes the safety minimum you never want to fall below. Because each visit has a fixed travel cost, machine capacity is really an investment in reduced service frequency.
Usable stock
Usable = Capacity x (1 - Minimum stock %)
Days between restocks
Days = Usable stock / Average daily sales
Because a machine that sells out stops earning and disappoints customers, and sales rates vary day to day. A 20% floor absorbs that variability.
Considerably. Demand-based routing rather than fixed schedules typically cuts visits by 20-30% while reducing sell-outs.