Inputs Explained
Number of Mailers
Total pieces mailed. Larger quantities lower your per-piece cost.
Total Campaign Cost
Everything combined: design, printing, list, postage, and any mailing services.
Average Sale Amount
Your average transaction value or contract value per new customer.
Average Cost Per Sale
Product, labor, and fulfillment cost per unit. Does not include campaign cost.
Rate Benchmarks
Response Rate
Untargeted / saturation: 0.25–0.75%
Targeted prospect list: 1–2%
Your own house list: 3–5%+
Conversion Rate
The share of responders who become buyers. Highly variable by offer and industry — 20–40% is common for warm direct mail.
Repeat Orders
If customers typically reorder, factor that in. Even 2 repeat orders can dramatically improve ROI.
Results Explained
ROI %
Campaign profit divided by campaign cost. 100% ROI means you doubled your investment.
Cost per Buyer
Total campaign cost divided by number of buyers acquired. Your customer acquisition cost (CAC).
Break-Even Buyers
The minimum number of buyers needed for the campaign to cover its own cost, before any profit.
Campaign Profit / Loss
Total revenue minus cost of goods and campaign cost. Positive = profitable campaign.