Comparisons
Two methods, one set of numbers. Each page runs both calculations on the same inputs so the difference is a figure you can check, not a claim you have to accept — then says which one to use and when.
8 comparisons.
Simple Interest vs Compound Interest
Simple interest charges the principal only; compound interest charges the balance. On $10,000 at 5% over 10 years that gap is $1,288.95 — here is where it comes from.
7 attributes · 5 questions
Markup vs Margin
Markup divides profit by cost; margin divides it by price. The same $20 profit is 50% markup and 33.3% margin — and the gap widens as the rate rises.
7 attributes · 5 questions
ROI vs CAGR
ROI measures the whole return; CAGR turns it into a compound annual rate. A 100% return over five years is 20% a year by division but 14.87% a year in reality.
7 attributes · 5 questions
APR vs APY
APR is the nominal annual rate; APY includes compounding. At 6% compounded monthly the gap is 0.17 points — $16.78 a year on $10,000, and $488 over five years.
7 attributes · 5 questions
Discount vs Markup
A markup is calculated on cost, a discount on price. That asymmetry means a 25% markup is wiped out by a 20% discount — and every extra point of discount costs more than it looks.
7 attributes · 5 questions
Average vs Median
The average uses every value; the median uses the middle one. On five incomes where one is an outlier, the average moves 8.65 and the median moves 1.5 — here is why that matters.
7 attributes · 5 questions
BMR vs TDEE
BMR is what you burn at complete rest; TDEE multiplies it by an activity factor. For a 30-year-old man at 80 kg that is 1,780 versus 2,759 calories a day.
7 attributes · 5 questions
Salary vs Hourly Pay
A $60,000 salary is $28.85 an hour at 2,080 hours, or $30.00 at 2,000. The hours assumption decides the answer, and it is the part most comparisons leave out.
7 attributes · 5 questions
Looking for a single method?
If you already know which calculation you need, the guide for it walks through the formula, the steps and the mistakes. The reference library holds the lookup tables.