Financial Calculation Guides & Formulas

How 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

Profit 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

YouTube 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

Profit 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

How 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

Percentage Explained Simply

What is a percentage? Conversions, real-world uses, and visuals

What Is ROI?

ROI definition, types, and benchmarks by investment category