What this Skill helps with

PPC Financial Calculator shows the formulas and calculations behind CPA, CPL, ROAS, break-even targets, budget forecasts, impression-share opportunity, LTV to CAC, and marketing efficiency ratio.

Who this Skill is for

It is intended for paid-media teams, founders, finance partners, agencies, and marketing leaders checking whether campaign targets and budget plans fit the business economics.

What you provide

  • Spend, clicks, leads, customers, revenue, and conversion values
  • Gross margin, average order value, or recurring revenue assumptions
  • Lead-to-customer rate and sales-cycle timing
  • Customer acquisition cost and lifetime-value method
  • Target CPA, CPL, ROAS, or growth goal
  • Impression share, lost share, CPC, and conversion rate when forecasting opportunity

What it produces

  • Selected formula with substituted inputs
  • Calculation result and unit check
  • Break-even and target ranges
  • Budget or volume scenarios
  • Sensitivity table for uncertain inputs
  • Assumptions, missing data, and interpretation notes

How the Skill works

The workflow first identifies the decision and required calculation, then shows the formula, inputs, units, and result. It can compare scenarios while keeping estimates separate from observed account values.

Installation and first use

  1. Download and add the Skill to Claude.
  2. State the calculation or decision you need.
  3. Provide the inputs with currency, period, and attribution scope.
  4. Ask for the formula and assumptions to be shown.
  5. Check the result with finance and platform reporting before making budget decisions.

Example workflow and expected output

Provide monthly spend, leads, customers, revenue, gross margin, and twelve-month customer value. Ask for CPL, CPA, ROAS, break-even ROAS, LTV to CAC, and three budget scenarios with formulas and sensitivity ranges.

Limits and review guidance

Calculations are only as reliable as their inputs and definitions. Attribution, refunds, discounts, overhead, repeat purchases, sales lag, and margin treatment can materially change the result. Confirm financial definitions with the responsible owner.

Frequently asked questions

Does it show the formulas it uses?

Yes. The output should display the formula, supplied values, units, and result.

Can it calculate break-even ROAS?

Yes. Provide the margin definition and any variable costs that should be included.

Can it forecast additional spend from impression share?

Yes. The result remains an estimate and should include CPC, conversion-rate, demand, and capacity assumptions.