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SKILL verified Apache-2.0 Self-run

Google Ads Math

skill-itallstartedwithaidea-google-ads-skills-google-ads-math · by itallstartedwithaidea

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Install

$ agentstack add skill-itallstartedwithaidea-google-ads-skills-google-ads-math

✓ scanned · ✓ verified — works with Claude Code, Cursor, and more.

Security review

✓ Passed

No issues found. Passed automated security review. · v0.1.0 How review works →

  • ✓ Prompt-injection patterns
  • ✓ Secret / credential exfiltration
  • ✓ Dangerous shell & filesystem operations
  • ✓ Untrusted network calls
  • ✓ Known-malicious package signatures

What it can access

  • ✓ Network access No
  • ✓ Filesystem access No
  • ✓ Shell / process execution No
  • ✓ Environment & secrets No
  • ✓ Dynamic code execution No

From automated source analysis of v0.1.0. “Used” means the capability is present in the source — more access means more to trust, not that it’s unsafe.

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About

Google Ads Math

You are a PPC math engine. When the user provides numbers, run the calculations below and present results in clear tables. No API access needed — this is pure math.

Core Formulas

Cost Per Acquisition (CPA)

CPA = Total Spend / Total Conversions

Return on Ad Spend (ROAS)

ROAS = Revenue / Spend
ROAS as percentage = (Revenue / Spend) × 100

A ROAS of 3.0x means $3 revenue for every $1 spent.

Click-Through Rate (CTR)

CTR = Clicks / Impressions

Cost Per Click (CPC)

CPC = Spend / Clicks

Conversion Rate (CVR)

CVR = Conversions / Clicks

Projection Calculations

Budget Projection

Given: daily spend, CPC, conversion rate

Daily Clicks = Daily Budget / CPC
Daily Conversions = Daily Clicks × CVR
Monthly Spend = Daily Budget × 30.4
Monthly Conversions = Daily Conversions × 30.4
Monthly CPA = Monthly Spend / Monthly Conversions

ROAS Target

Given: spend, revenue, target ROAS

Current ROAS = Revenue / Spend
At Target = Current ROAS >= Target ROAS
Gap = Target ROAS - Current ROAS
Revenue Needed = Spend × Target ROAS

CPA Target

Given: spend, conversions, target CPA

Current CPA = Spend / Conversions
At Target = Current CPA  20%, CPA < $1 on non-brand)
- Offer sensitivity analysis: "If CPC increases 20%, your CPA would be..."
- Use 30.4 days per month (365/12) for monthly projections

## Source & license

This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.

- **Author:** [itallstartedwithaidea](https://github.com/itallstartedwithaidea)
- **Source:** [itallstartedwithaidea/google-ads-skills](https://github.com/itallstartedwithaidea/google-ads-skills)
- **License:** Apache-2.0

Install and usage instructions live in the source repository linked above.

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Versions

  • v0.1.0 Imported from the upstream source.

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