Slot Machine ROI Calculator

Coin-in, also known as 'handle' or 'turnover', is the total amount of money wagered through a slot machine over a period. It's not the amount of money the casino keeps, but the total volume of bets made.

The hold percentage is the portion of the coin-in that the machine is designed to 'hold' as the casino's win. It's the inverse of the payout percentage. An 8% hold means the machine has a 92% payout rate to players over the long run.

Win Per Day (or Win Per Unit) is a standard industry metric for measuring a machine's performance. It tells you how much gross revenue a machine is earning on average, making it easy to compare different machines on your floor regardless of their hold percentage or the volume of play they receive.

For the purpose of this calculator, include the portion of salaries for staff who directly service or manage this bank of machines, such as slot technicians, attendants, and supervisors. You can estimate this based on the percentage of their time spent on these specific machines.

This calculator focuses on a cash-based ROI by comparing net operating income to the initial cash investment. It does not include non-cash expenses like depreciation. For a formal accounting ROI (Return on Assets), you would typically include depreciation as an expense.