ads-math

Calculate CPA, ROAS, break-even, and budget forecasts from pasted PPC data.

Updated Apr 21, 2026
One-click install
npx skills add https://github.com/chriswestt/claude-skills --skill ads-math-chriswestt
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: ads-math
Source: https://github.com/chriswestt/claude-skills/tree/main/ads-math
Command: npx skills add https://github.com/chriswestt/claude-skills --skill ads-math-chriswestt

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

PPC managers often juggle disparate spreadsheets and ad-platform data; this Skill consolidates CPA, ROAS, break-even and forecast analysis into a single workflow to speed decision making.

Core Features & Use Cases

  • CPA Calculator: compute cost per acquisition from spend and conversions with optional benchmark comparisons.
  • ROAS & Break-even Analysis: evaluate revenue efficiency, break-even CPA, and required margins for profitable campaigns.
  • Budget Forecasting & LTV:CAC: project spend, conversions, and revenue across scenarios; assess long-term unit economics.

Quick Start

Paste your campaign data or exports to generate immediate PPC calculations and scenario forecasts.

Frequently Asked Questions about ads-math

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

FAQPage Schema
How do I calculate CPA and ROAS from pasted campaign data without API access?

To calculate CPA and ROAS without API access, simply paste your campaign spend, conversions, and revenue data. The Skill processes raw exports instantly, providing cost per acquisition and return on ad spend metrics alongside clear formula breakdowns and actionable recommendations.

What's the best way to forecast PPC budget and conversions across different scenarios?

The best way to forecast PPC budget and conversions across scenarios is to input historical spend and conversion data. The Skill projects future spend, conversions, and revenue outcomes while evaluating long-term unit economics like LTV:CAC ratios for sustainable scaling.

Can I evaluate break-even CPA and required margins for profitable ad campaigns?

Yes, you can evaluate break-even CPA and required margins for profitable campaigns. By analyzing revenue efficiency against ad spend using your pasted data, the Skill determines the exact break-even point and calculates the margins needed for profitability.

Does this PPC math modeling approach support impression share opportunity sizing and MER calculations?

This PPC math modeling approach fully supports impression share opportunity sizing and MER calculations. It centralizes marketing efficiency ratio and impression share analysis to identify untapped reach opportunities and evaluate overall account efficiency.

Why use centralized PPC financial calculations instead of juggling disparate spreadsheets?

Centralized PPC financial calculations prevent the errors and inefficiencies of juggling disparate spreadsheets and ad-platform data. Consolidating CPA, ROAS, break-even, and forecast analysis into a single workflow accelerates decision making with clear interpretations.

What data do I need to start computing PPC financial calculations and LTV:CAC unit economics?

To start computing PPC financial calculations and LTV:CAC unit economics, you need pasted campaign data or exports containing spend, conversions, revenue, and customer lifetime value figures. No API connections or platform integrations are required for the analysis.