Financial Calculation Guides & Formulas
Step-by-step guides explaining how to calculate percentages, ROI, profit, commission, and more — with real examples, formula breakdowns, and free calculators.
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FAQ Answers
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Formula Guides
15 guidesHow to Calculate Percentage
The 3 core percentage formulas with step-by-step examples
How to Calculate ROI
Return on investment formula for business, stocks, and marketing
How to Calculate Profit
Gross profit, net profit, and margin formulas with real examples
How to Calculate Gross Profit
Revenue minus COGS — formula, industry benchmarks, and interactive calculator
How to Calculate Net Income
Bottom-line profit after all expenses — income statement walkthrough
How to Calculate Commission
Sales commission formulas and industry rate benchmarks
How to Calculate Markup
Markup vs margin explained with conversion table
How to Calculate Compound Interest
A = P(1 + r/n)^nt explained with growth tables
How to Calculate CAGR
Compound annual growth rate formula, benchmarks, and investment examples
How to Calculate Payback Period
Simple and discounted payback period with year-by-year cash flow table
How to Calculate Savings Rate
Personal savings rate formula and FIRE movement targets
How to Calculate Inflation Rate
CPI-based inflation formula and purchasing power impact
How to Calculate Tip
Tip percentage formulas and split-bill examples
How to Calculate Discount
Discount amount, sale price, and stacked discount formulas
How to Calculate Break-Even Point
Units and revenue break-even formulas with real business examples
Worked Examples
7 guidesProfit Calculation Example
Real examples for retail, freelance, e-commerce, and restaurants
ROI Example
6 real ROI calculations including marketing, stocks, and real estate
Discount Calculation Example
Step-by-step discount examples including double discounts
Commission Calculation Example
Real estate, SaaS, and tiered commission examples
Crypto ROI Example
Bitcoin, Ethereum, and altcoin ROI calculations with fees
Loan Payment Example
Mortgage, car loan, and personal loan payment breakdowns
Salary After Tax Example
Take-home pay for $50K, $85K, and $150K salaries
Creator Economy
5 guidesYouTube Earnings Per 1,000 Views
RPM by niche — finance earns 5× more than gaming
How Much Does YouTube Pay?
Complete 2024 guide: revenue streams, tiers, and payment schedule
How Much Money YouTube Pays
Real earnings examples by channel size and niche with RPM tables
TikTok Earnings Estimate
Creator Fund vs brand deals — what actually pays
How to Calculate Ad Revenue
RPM, CPM, platform cuts — all platforms compared
Business Guides
4 guidesProfit Margin Explained
Gross, operating, and net margin — formulas, benchmarks, and tips
Profit Margin for Small Business
Industry benchmarks and 5 ways to improve your margin
Break-Even Calculation
Formula, examples for coffee shop, SaaS, and e-commerce
Profit vs Revenue Explained
Why high revenue doesn't mean high profit — with real examples
Personal Finance
5 guidesHow to Calculate Net Worth
Assets minus liabilities — formula, what counts, and growth strategies
Net Worth Milestones
Decade-by-decade wealth targets and action plan
Mortgage Payment Formula
Monthly payment formula, amortization, and 15 vs 30-year comparison
Mortgage Calculator with Taxes & Insurance
True monthly cost including PITI — principal, interest, taxes, insurance
$20 an Hour Annually
Annual salary, monthly take-home, and cost-of-living comparison
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