Monte Carlo Engine — Financial Planning

📐 How It Works

Define up to 6 input variables with ranges. Write a formula combining them. Run 10,000 simulations. See the distribution of outcomes.

Example: For dad's garage 5-year cash flow: (spots × rent × 12 × occ × 5) − (opex × 60) − price
Variables: spots=14 (fixed), rent (75–200), occ (0.6–0.95), opex (500–2000), price (90000–150000)

🎯 Define Variables

Distribution: uniform (equal chance across range), triangular (most likely = midpoint), normal (bell curve, midpoint = mean, range = ±2 sigma).

A

B

C

D

E

F

📝 Formula

Combine variables (use letters A-F, supports + − × / parentheses):

Number of runs:

📊 Results

Mean

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P5 (pessimistic)

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P25

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P50 (median)

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P75

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P95 (optimistic)

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P(positive)

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Std dev

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