Guides and Articles
Learn essential financial concepts with our free practical guides.
Investments and returns
Compound interest: what it is and how to calculate
Understand the power of compound interest and learn to calculate your money's growth over time.
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IRR: what is Internal Rate of Return and how to calculate
Learn what IRR is, how to interpret it and when to use it to evaluate investments.
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Fixed Income: CDI, IPCA+ and Selic — which to choose?
Compare the main types of fixed income and understand when to use each one.
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How to use a financial calculator
Complete guide to using financial calculators and interpreting results.
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How to calculate IRR in Excel, step by step
Organize a cash flow, use Excel's IRR function, and check the result with NPV and an independent calculation.
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How to calculate percentages in Excel: formulas and examples
Calculate percentages, increases, discounts, and changes in Excel with copyable formulas, fixed references, and checked results.
Housing and financing
SAC vs Price: which amortization system to choose?
Understand the differences between SAC and Price systems and discover which is better for your mortgage.
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Mortgage vs Consortium: which to choose?
Compare the advantages and disadvantages of mortgages and consortiums to decide which is better for you.
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