commerce-margin-calculator

Calculate product margins and end ROAS from user-input costs, prices, and fees.

267|63|Updated Feb 15, 2026
One-click install
npx skills add https://github.com/modu-ai/cowork-plugins --skill commerce-margin-calculator
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: commerce-margin-calculator
Source: https://github.com/modu-ai/cowork-plugins/tree/main/moai-commerce/skills/commerce-margin-calculator
Command: npx skills add https://github.com/modu-ai/cowork-plugins --skill commerce-margin-calculator

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill requires pandas, numpy, and includes scripts (resource) components.

What problem does it solve?

This Skill simplifies the process of determining product margins, end ROAS, and break-even advertising costs, helping e-commerce sellers optimize their ad spend and profitability efficiently.

Core Features & Use Cases

  • Automated Margin & ROAS Calculation: Computes product profit margins and end ROAS based on user inputs such as selling price, cost, and platform fees.
  • Versatile Application: Handles various sales channels like Shopify, Coupang, and Naver Smart Store, automatically adjusting for specific fee rates and tax considerations.
  • Use Case: An online seller inputs a product’s selling price, cost, and platform to instantly receive actionable insights on ad budget limits and profitability, ensuring data-driven decision-making.

Quick Start

Provide the product sales price, cost, shipping fee, sales channel, and optional discounts to quickly see the margin and ROAS details.

Frequently Asked Questions about commerce-margin-calculator

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I calculate product margins and ROAS for e-commerce sales channels?

To calculate product margins and ROAS, input your selling price, product cost, shipping fee, and sales channel. The tool automatically adjusts for platform fees, taxes, and discounts to provide accurate profitability metrics.

Does this margin calculator support platform fees for Shopify, Coupang, and Naver Smart Store?

Yes, the margin calculator supports various sales channels including Shopify, Coupang, and Naver Smart Store. It automatically adjusts calculations based on the specific fee rates and tax considerations for each platform.

How do I determine my break-even advertising cost for an e-commerce product?

You can determine your break-even advertising cost by inputting your product's selling price, cost, and applicable platform fees. The tool computes your end ROAS and margin to show your maximum profitable ad spend limit.

What inputs do I need to calculate e-commerce profitability including discounts?

To calculate e-commerce profitability, you need to provide your product sales price, cost, shipping fee, sales channel, and optional discounts. These inputs allow the tool to compute accurate margins and ROAS metrics.

Can I use pandas and numpy for automated e-commerce margin calculations?

Yes, the automated margin and ROAS calculation process is built using pandas and numpy. These dependencies handle the numerical processing to compute product profitability based on your inputted costs, prices, and fee rates.

Why does my end ROAS calculation need to account for taxes and platform fees?

Your end ROAS calculation must account for taxes and platform fees because these costs directly reduce your net revenue. Including them ensures you measure true profitability and set accurate advertising budget limits.