Business Math Calculators With Step-by-Step Solutions
Free business math help for students and for working teams. The solvers write out every step with your own numbers, and each topic has worked examples with solutions and a printable worksheet with answers. Each business math calculator runs the calculation in your browser and shows the formula, assumptions, worked example, and result interpretation behind the number.
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Learn business math step by step
Course topics with a solver, worked examples and a worksheet each, plus a formulas cheat sheet.
Trade Discount Calculator: Step-by-Step Solution
Solve single and chain (series) trade discounts step by step: net price, trade discount rate, list price, net price equivalent rate and single equivalent discount rate. Check your own answer.
Trade Discount Examples with Solutions
Eleven trade discount and chain discount word problems with full step-by-step solutions, from basic net price questions to exam-style supplier comparisons and trade plus cash discounts.
Trade Discount Worksheet with Answers
Printable trade discount worksheet: 13 practice problems on single and chain discounts, net price, rates and list price, with an answer key. Free, no sign-up; print or save as PDF.
Cash Discount Calculator: Step-by-Step Solution
Solve cash discount problems step by step: terms such as 2/10, n/30, the discount deadline and due date (ordinary, EOM, ROG, proximo), the amount paid and the credit for a partial payment. Check your own answer.
Cash Discount Examples with Solutions
Ten cash discount word problems with full step-by-step solutions: terms like 2/10, n/30, counting days, EOM, ROG and proximo dating, partial payments, and a trade discount followed by a cash discount.
Cash Discount Worksheet with Answers
Printable cash discount worksheet: 12 practice problems on credit terms, discount periods, due dates, EOM and ROG dating and partial payments, with an answer key. Free, no sign-up; print or save as PDF.
Markup and Markdown Calculator
Solve markup and markdown problems step by step: markup on cost vs on selling price, converting between them, finding cost or selling price, markdown percent and breakeven price. Check your own answer.
Markup and Markdown Examples with Solutions
Ten markup and markdown word problems with full step-by-step solutions: markup on cost and on selling price, converting between them, finding cost or selling price, markdown percent, successive markdowns and breakeven prices.
Markup and Markdown Worksheet with Answers
Printable markup and markdown worksheet: 12 practice problems on markup on cost and on selling price, markdown percent and breakeven prices, with an answer key. Free, no sign-up; print or save as PDF.
Business tools
Calculators for working decisions across inventory, workforce, SaaS, and profitability.
Customer Lifetime Value (CLV/LTV) Calculator
Estimate customer lifetime value (CLV/LTV) from subscription revenue and churn or from transactional order value, purchase frequency, and lifespan, with an optional portfolio-wide value estimate.
Profit Margin Calculator
Calculate profit and profit margin from revenue and total cost, with cost share and support for negative results.
Gross Margin Calculator
Calculate gross profit and gross margin, also called gross profit margin, from revenue and cost of goods sold (COGS).
Inventory Carrying Cost Calculator
Estimate the annual and monthly cost of holding your inventory, from a quick percentage or a full cost build-up.
Reorder Point Calculator
Calculate when to reorder stock with a known safety stock, an Average-Max buffer, or a service-level statistical buffer — no separate safety-stock calculation required first.
Employee Turnover Cost Calculator
Estimate how many employees are likely to leave this year and what that turnover costs, from a quick percentage or a full advanced cost build-up.
More calculators
Browse by decision area
Select a cluster of tools designed to optimize operational efficiency and business costs.
Inventory & Operations
Calculators for the cost of holding, moving, and managing physical inventory and day-to-day operations.
4 calculators
Workforce Costs
Calculators for labor cost relative to revenue and for the cost of losing and replacing employees.
2 calculators
SaaS & Customer Economics
Calculators for customer acquisition, retention, and subscription business economics.
3 calculators
Business Costs & Profitability
Calculators for general business cost, decision, and profitability models.
3 calculators
Formula Guides
Read the formula, components, and a worked example behind the numbers.
Customer Lifetime Value Formula: How to Calculate CLV
The CLV/LTV formula explained in plain terms: the simple revenue model, the gross-margin adjustment, the churn-based shortcut for subscriptions, and a discounted version, each with a worked example.
Inventory Carrying Cost Formula: Components and Example
The inventory carrying cost formula explained in plain English: the nine cost components, dollars vs. rate, and a complete worked example.
Employee Turnover Cost: Formula, Components, and Example
The employee turnover cost formula explained in plain English: quick estimate vs. component build-up, the six cost drivers, and a complete worked example.
LTV:CAC Ratio Explained: Formula, Example, and Interpretation
How the LTV:CAC ratio is calculated, a full worked example, and what the ratio does and does not tell you about a customer relationship.
How Business Math Lab works
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Input
Enter your assumptions
Use your own costs, volumes, rates, time periods, and units.
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Formula
See the formula
Review the arithmetic, variable meanings, and model limits.
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Interpretation
Interpret the result
Compare the output with assumptions, examples, and related tools.
Methodology and trust
Created and maintained by Ivan Daniel using documented methodology and editorial standards.