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Free tools for online sellers
Calculators and Excel templates for second-hand trade, marketplaces and automation – with documented data and transparent formulas.
Calculator
- Calculator
Calculate the margin scheme
VAT, taxable amount and profit for used goods – also for many items and as a global margin.
- Calculator
Marketplace profit calculator
Commission, fixed fees and profit per sale on Amazon, eBay, Kaufland and OTTO compared.
- Calculator
Automation & ROI calculator
Time spent, possible savings and break-even of a software – with your own assumptions and scenarios.
- Comparison
Software comparison
Multichannel and inventory management software with real monthly costs for your order volume.
Excel templates
- Excel
Inventory management
Stock, stock value and reorder needs calculated automatically from incoming and outgoing goods.
- Excel
IMEI and serial number list
Devices with IMEI from purchase to sale – with duplicate check and days in stock.
- Excel
Purchase and sales price calculation
Minimum sales price for your target margin – with fees, shipping and VAT.
- Excel
Margin scheme overview
Margin, VAT and profit per item – with global margin up to €750.
- Excel
Multichannel sales overview
Revenue, fees and contribution margin per sales channel – with chart and month filter.