Inputs
Read Good Deal vs Bad Deal, then enter rent, rate, taxes, insurance, and vacancy from your own documents. If the output and your budget disagree, a line item is usually missing or mistyped.
One at a time
After each run, change only one input. The input that moves monthly cash flow or equity the most is the one to verify against a source document.
Deliberate tweak
Drop modeled rent by $100/month for twelve months; if cash flow goes negative, you know how sensitive the deal is to vacancy or rent cuts.
Signal
Inputs saved Largest swing
From your statement
Core lesson
Go deeper: Good Deal vs Bad Deal. Use the calculators below with your own loan or bill numbers, not only the examples on this page.
Use the calculator
FAQ
- Where is the main lesson?
Good Deal vs Bad Deal is the hub with related lessons linked from it.
- Which calculator should I open first?
Use Rent vs buy or Home afford for housing tradeoffs; Loan or Amortization for payments and equity.