Developed and maintained by ProWorkstack · Development and review process
Compare sponsorship payments received with production and selling costs for a defined newsletter campaign.
Your results
Enter your inputs and select Calculate.
How this calculator works
Payments received = paid placements × collected fee. Cost = payments received × selling fee fraction + production hours × hourly cost + other campaign costs. Money left after variable costs = payments received − costs. Cost-based ROI = money left after variable costs ÷ positive estimated cost × 100.Worked example
Four placements at 750 produce 3,000. A 10% selling fee is 300; 20 production hours at 40 add 800 and other costs add 200. Total cost is 1,300, money left after variable costs 1,700 and cost-based ROI 130.77%.Assumptions
Defaults are illustrative. Replace them with your own measured quantities and documented assumptions. Use matching periods and a consistent currency wherever monetary amounts are entered.Interpreting your results
This does not match sponsors, track subscriber behavior or establish advertiser conversion ROI. It values publisher campaign costs only. Include a percentage of ongoing production costs if they belong in the decision.Calculation formulas
- revenue
placements*fee- cost
revenue*selling/100+hours*rate+other- net
revenue-cost- Campaign earnings after entered costs
net- Return on campaign costs
SAFE_DIV(net,cost,0)*100- Sponsorship payments received
revenue- Total campaign cost
cost
Frequently asked questions
What should I check before using the result?
Count delivered paid placements and comparable collected fees. Exclude a future booking unless you deliberately model it as a scenario. Distinguish publisher money left after variable costs from the advertiser’s return, which needs different evidence.
Does this tool connect to my records?
No. This is a local calculation from the figures you enter. It does not scan accounts, import private records or verify legal, regulatory or exam requirements.
Maintained by ProWorkstack · Last reviewed: 2026-10-04 · Development and review process