Beds × rent − costs = your monthly cash flow. Run the numbers on any house before you commit — then see how fast it pays back your startup costs.
Enter your beds and per-bed rent. Occupancy accounts for vacant beds and turnover.
Enter monthly amounts. For costs billed less often (e.g. quarterly pest control), divide to a monthly figure.
The cash it takes to open the doors. These aren't monthly — they set your payback clock.