The theoretical hold is 8%. This month's actual hold is 4.9%. Does the machine have a problem? Possibly. But no responsible conclusion can be reached before checking wagering volume, game mix, jackpot outcomes, meter accuracy and the mathematical variance of the games...
The machine with the highest coin-in on the floor is not necessarily the best-performing machine. It may sit directly opposite the entrance. It may have been available six hours longer than comparable units. A single high-stakes player may have inflated its result. Or...
A slot report can show which machine won the most yesterday. It cannot, by itself, tell management which machine is best, which game should be moved or whether a cabinet should be replaced. The result may reflect location, availability, denomination, a small number of...