Money & Finance
15-Year vs 30-Year Mortgage: Payment, Interest and Trade-offs
A shorter mortgage costs far less in interest but asks for a much higher monthly payment. A side-by-side example shows the size of both effects.
Money & Finance
Plain-English guides to interest, loans, savings, pay, discounts and everyday money math, each one explained with worked examples.
Money & Finance
APR vs APY: What the Two Rates Really Tell You
APR and APY are two ways to quote the same rate. One ignores compounding and one includes it, and mixing them up can make a worse deal look better.
Money & Finance
APR vs Interest Rate: What the Difference Means for a Loan
A loan with the lower interest rate is not always the cheaper loan. The APR folds in certain fees so offers can be compared, and a worked example shows how.
Money & Finance
The Compound Interest Formula, Step by Step
Compound interest is interest that earns interest. Here is the formula, a full worked example, and how to rearrange it to find the interest, the time or the rate.
Money & Finance
Does Compounding Frequency Matter? Daily vs Monthly vs Yearly
Moving from yearly to monthly compounding adds a visible amount; moving from daily to continuous adds under a dollar. The numbers show where the gains run out.
Money & Finance
Hourly or Salaried? How to Compare Two Job Offers Fairly
A $24 hourly wage and a $52,000 salary are not comparable until you count hours and paid leave. Here is a simple method to line them up.
Money & Finance
How Loan Amortization Works: Where Each Payment Goes
Every payment on a fixed loan is the same size, but the split between interest and principal keeps changing. Here is how that schedule is built and read.
Money & Finance
How Overtime Pay Is Calculated: Time-and-a-Half Worked Through
Overtime math is simple once you know the regular rate and the threshold. Follow worked examples for hourly, bonus and salaried pay.
Money & Finance
How to Calculate a Monthly Loan Payment by Hand
A loan payment comes from one short formula. Work through it with real numbers, see how term and rate change the total cost, and learn to check a lender's quote.
Money & Finance
How VAT Works: Adding and Removing It, and Sales Tax Compared
To remove 20% VAT you divide by 1.2, not subtract 20%. Follow the formulas, a supply-chain example, and a comparison with sales tax.
Money & Finance
Inflation and Purchasing Power: What Your Money Buys Over Time
A rise in prices means each unit of money buys less. Here is how to measure inflation, project future prices and work out the value of cash that sits still.
Money & Finance
Simple vs Compound Interest: How the Gap Grows
Simple interest grows in a straight line and compound interest curves upward. A side-by-side example shows how small the gap is at first and how large it becomes.