Margin Guide: Calculating Gross Margins
Executive Summary
Profit margin is a fundamental business metric that quantifies the percentage of sales revenue that exceeds the Cost of Goods Sold (COGS). It measures financial health and unit economics.
Key Takeaways
- revenue-relative: Profit margin measures unit profit relative to the selling price, not the cost.
- pricing control: Margins ensure that a specific percentage of every dollar of sales revenue is retained as gross profit.
- cost relationship: Margin equals gross profit divided by unit selling price, showing the business's pricing power.
Formula
Price = Cost / (1 - Margin / 100)
Gross Margin Pricing Formula
Variable Glossary
| Symbol | Meaning & Description |
|---|---|
| Price | Unit Selling Price |
| Cost | Unit Cost (COGS) |
| Margin% | Target gross profit margin percentage |
Step-by-Step Worked Example
1. Mapped Variables
Unit Cost (COGS)
Cost$75
Target Gross Margin
Margin25%
2. Equation Substitution
Equation with standard inputs
Price = $75 / (1 - 25 / 100)
3. Calculation Steps
Step 1: Calculate margin divisor
Divisor = 1 - (Margin ÷ 100) = 1 - (25 ÷ 100) = 0.7500
Step 2: Divide cost by margin divisor
Price = Cost ÷ Divisor = $75 ÷ 0.7500 = $75.00
Step 3: Calculate equivalent markup percentage
Markup = ((Price - Cost) ÷ Cost) × 100 = 33.33%
Final Resolved Cost of Goods Sold (COGS)$75.00
Live Simulation
Margin Calculator Sandbox
Tweak variables below to see the formula calculate instantly.
Selling Price ($)$100
Gross Margin (%)25%
Calculating...
Common Mistakes to Avoid
Calculating Profit from Cost: Applying a target margin directly to the unit cost (Cost * (1 + Margin)) results in underpriced products. The correct formula divides cost by (1 - Margin).
Frequently Asked Questions
Interactive Tool
Margin Calculator
Determine COGS and equivalent markup from selling price and profit margin percentage.