Master the Numbers
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What is Cash-on-Cash Return? The Metric Every Rental Investor Needs
Cash-on-cash return measures your actual return on invested capital. Learn how to calculate it and why it matters more than cap rate for leveraged deals.
Cap Rate vs Cash-on-Cash Return: What's the Difference?
Two metrics dominate rental property analysis. Understanding when to use each will make you a better investor.
How to Calculate ROI on Rental Property
ROI is the ultimate scorecard for rental property investing. Learn the different ways to calculate it and which method is right for your analysis.
What is Compound Interest? The Most Powerful Force in Investing
Compound interest is the single most important concept for building long-term wealth. Learn how it works and how to put it to work for you.
Pre-Money vs Post-Money Valuation: What Founders Need to Know
The difference between pre-money and post-money valuation can change your ownership by 20%. Learn how to calculate both and avoid common mistakes.
How VCs Calculate Startup Valuations: The VC Method Explained
Startup valuation can feel like black magic. Learn the framework investors use to work backward from expected returns to today's valuation.
Mortgage Amortization Explained: How Your Payments Are Divided Over Time
Ever wonder why most of your early mortgage payments go to interest? Learn how amortization works and how to build equity faster.
CAGR Explained: The Best Way to Measure Investment Growth
CAGR smooths out the bumps to show your true investment growth rate. Learn how to calculate it and why it matters.
Startup Dilution Explained: How Funding Rounds Affect Your Ownership
Each funding round dilutes your ownership stake. Learn to calculate dilution, protect your equity, and understand what really matters for founder wealth.
Should You Make Extra Mortgage Payments? A Complete Analysis
Extra mortgage payments can save you tens of thousands in interest—but is it always the right move? Learn when to pay down your mortgage faster and when to invest instead.
What is a Good Cap Rate? 2025 Benchmarks by Property Type
Cap rate benchmarks vary wildly by property type, location, and risk level. Learn what ranges to expect and how to interpret cap rates in today's market.
Net Operating Income (NOI) Explained: The Foundation of Real Estate Analysis
NOI is the most important number in commercial real estate. Learn how to calculate it correctly and avoid common mistakes.
Rent vs Buy in 2025: A Financial Analysis Framework
Should you rent or buy in today's market? Learn the real math behind the decision—beyond the "throwing money away" myth.
The Rule of 72: The Fastest Way to Estimate Investment Doubling Time
The Rule of 72 lets you calculate how long it takes to double your money in seconds. Learn this essential mental math shortcut.
Startup Runway: How to Calculate and Extend Your Survival Timeline
Running out of money is the most common way startups fail. Learn how to calculate runway, optimize burn rate, and know when to raise.
What is ROI? A Simple Guide to Return on Investment
ROI measures the profitability of any investment. Learn the formula, see examples, and understand the limitations of this fundamental metric.
How to Use the 1% Rule for Rental Properties
The 1% rule is the fastest way to screen rental properties. Learn how to use it effectively, when to dig deeper, and why it works as a quick filter for cash flow.
The 4% Rule for Retirement: Does It Still Work?
The 4% rule has been the cornerstone of retirement planning for 30 years. Learn what it is, how it works, and whether it still applies in today's market conditions.
How Much House Can I Afford? An Income-Based Guide
Learn how to calculate what you can actually afford—not just what you can technically qualify for. Includes income ratios, hidden costs, and practical guidelines.
DSCR Explained: Debt Service Coverage Ratio for Real Estate Investors
DSCR measures a property's ability to cover its debt payments. Learn how lenders use it, what ratios they require, and how to improve your DSCR to qualify for better loans.
What is IRR in Real Estate? Internal Rate of Return Explained
IRR is the gold standard for evaluating real estate investments. Learn what it is, how to calculate it, and why timing matters more than you think.
LTV Ratio Explained: What Lenders Look For
LTV (Loan-to-Value) ratio determines how much you can borrow, your interest rate, and whether you'll pay PMI. Learn how lenders use LTV and how to optimize yours.
Understanding Rental Yield: Gross vs Net Explained
Rental yield is one of the first metrics investors use to screen properties. Learn the difference between gross and net yield, and why confusing them can be expensive.
What is a SAFE Note? Simple Agreement for Future Equity Explained
SAFEs have become the default instrument for early-stage fundraising. Learn how they work, key terms like valuation caps and discounts, and how they affect founder dilution.
Simple Interest vs Compound Interest: Key Differences Explained
Simple interest stays flat; compound interest grows exponentially. Understanding the difference helps you choose better savings accounts, evaluate loans, and harness the power of compounding.
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