The load-out and check-in process is where rental businesses quietly lose the most money, and almost nobody measures it. A crew loads 120 chairs, delivers 112, and nobody notices until the next order is short. The customer was not charged, the item was never flagged damaged, and the inventory count in your system still says 120. Fix this with two counts — one at load-out against a printed or on-screen pick list, one at check-in against the same list — and a rule that shortages get recorded the same day, not at the end of the month.
Here is what the leak actually costs. A mid-size party rental with 600 folding chairs that loses 3% a season is down 18 chairs. At $14 replacement each, that is $252 — annoying, not fatal. The real cost shows up differently: two of those shortages surface on a Saturday morning when the crew arrives at a 100-guest backyard party with 94 chairs. That is a service recovery call, a discount, and a bad review. Replacement cost is never the expensive part.