GUIDE
Direct Mail ROI Guide
Use Scribbl’s transparent planning model to explore what a handwritten campaign might return. The numbers come only from the inputs you enter — this is scenario modeling, not a forecast of guaranteed results.
What this model is for
The ROI calculator helps you compare campaign cost with the customer value you already know. It does not assume a response rate, conversion rate, industry average, or Scribbl customer result.
Treat the outputs as a planning lens while you decide whether a mailing is worth testing.
Visible inputs
- Campaign Spend
- Average Customer Value
- Estimated New Customers
Outputs
- Estimated Revenue
- Net Return
- ROI %
- Break-even Customers
Transparent formula
Every result is derived from the three visible inputs. Nothing else is added behind the scenes.
- Estimated Revenue = Average Customer Value × Estimated New Customers
- Net Return = Estimated Revenue - Campaign Spend
- ROI % = Net Return / Campaign Spend × 100
- Break-even Customers = ceil(Campaign Spend / Average Customer Value)
How to use it
Enter a realistic Campaign Spend, the Average Customer Value you already observe, and the number of new customers you want to model. Then read Estimated Revenue, Net Return, ROI %, and Break-even Customers as a scenario — not a promise.
When you are ready to price a live campaign, review current plans or talk with Scribbl. The calculator does not replace campaign-specific pricing.