Calculate and model paid-media CPA, CPL, CPC, CPM, ROAS, MER

Paid Media Financial Model

by AgriciDaniel · MIT license · ★ 9,466 on GitHub · updated Sep 18

Calculate and model paid-media CPA, CPL, CPC, CPM, ROAS, MER, break-even targets, contribution margin, LTV:CAC, impression-share opportunity, budgets, forecasts, and experiment economics. Use for PPC math, ad calculator, break-even…

---
name: ads-math
description: "Calculate and model paid-media CPA, CPL, CPC, CPM, ROAS, MER, break-even targets, contribution margin, LTV:CAC, impression-share opportunity, budgets, forecasts, and experiment economics. Use for PPC math, ad calculator, break-even analysis, ROAS calculator, CPA calculator, budget forecast, LTV CAC, or MER."
---

# Paid Media Financial Model

1. Identify the decision and collect units, currency, period, tax/refund treatment,
   margin, attribution basis, and uncertainty.
2. Show the formula and map every input to an operator value or cited artifact.
3. Validate denominators, sign, missing values, incompatible windows, and unit
   conversions.
4. Calculate base, downside, and upside cases where uncertainty affects the decision.
5. Keep platform-attributed revenue, blended business revenue, cash flow, and
   contribution margin distinct.
6. Return machine-readable inputs, formulas, outputs, sensitivities, and decision
   implications.

Overview

Never fabricate missing financial inputs, hide division-by-zero, or present a point forecast without its assumptions.

Manual install (npx, ZIP)

Claude Codenpx skills add AgriciDaniel/claude-ads --skill ads-math -g -a claude-code

Claude Code (manual)

mkdir -p ~/.claude/skills && curl -sL https://codeload.github.com/AgriciDaniel/claude-ads/tar.gz/ac2164493391 \
  | tar -xz -C ~/.claude/skills --strip-components=2 claude-ads-ac2164493391/skills/ads-math

Windows (PowerShell)

New-Item -ItemType Directory -Force "$HOME\.claude\skills" | Out-Null; Invoke-WebRequest "https://m.agentalley.io/zip/9f090ce1db2bfa03f920/ads-math.zip" -OutFile "$env:TEMP\ads-math.zip"; Expand-Archive "$env:TEMP\ads-math.zip" -DestinationPath "$HOME\.claude\skills" -Force

Claude.ai / desktopDownload the ZIP and upload it under Settings → Capabilities → Skills.

Codex, Cursor, other agentsPoint them at SKILL.md. The other files are plain text.

Connects with Agent Alley MCP · agentalley.io/mcp

Files included

SKILL.md1.1 KB

Read the files here

AgriciDaniel/ac216441 file

SKILL.md1.1 KB

SKILL.md

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PreviewCodeRawView on GitHub

Paid Media Financial Model

Identify the decision and collect units, currency, period, tax/refund treatment, margin, attribution basis, and uncertainty.
Show the formula and map every input to an operator value or cited artifact.
Validate denominators, sign, missing values, incompatible windows, and unit conversions.
Calculate base, downside, and upside cases where uncertainty affects the decision.
Keep platform-attributed revenue, blended business revenue, cash flow, and contribution margin distinct.
Return machine-readable inputs, formulas, outputs, sensitivities, and decision implications.

Never fabricate missing financial inputs, hide division-by-zero, or present a point forecast without its assumptions.

1	---
2	name: ads-math
3	description: "Calculate and model paid-media CPA, CPL, CPC, CPM, ROAS, MER, break-even targets, contribution margin, LTV:CAC, impression-share opportunity, budgets, forecasts, and experiment economics. Use for PPC math, ad calculator, break-even analysis, ROAS calculator, CPA calculator, budget forecast, LTV CAC, or MER."
4	---
5
6	# Paid Media Financial Model
7
8	1. Identify the decision and collect units, currency, period, tax/refund treatment,
9	margin, attribution basis, and uncertainty.
10	2. Show the formula and map every input to an operator value or cited artifact.
11	3. Validate denominators, sign, missing values, incompatible windows, and unit
12	conversions.
13	4. Calculate base, downside, and upside cases where uncertainty affects the decision.
14	5. Keep platform-attributed revenue, blended business revenue, cash flow, and
15	contribution margin distinct.
16	6. Return machine-readable inputs, formulas, outputs, sensitivities, and decision
17	implications.
18
19	Never fabricate missing financial inputs, hide division-by-zero, or present a point
20	forecast without its assumptions.
21
22