A 20% discount on a €39.99 product needs 2.13 times the units to earn the same p
By Claudiu Clement · October 14, 2026 · Curated by George's Blog
A 20% discount on a €39.99 product needs 2.13 times the units to earn the same profit on Amazon.de.
Before the deal: Price €39.99, or €33.61 after 19% VAT Referral fee, 15% of €39.99: −€6.00 FBA fee, 900 g parcel: −€3.23 Landed COGS: −€9.50 Advertising per unit: −€4.00 = €10.88 profit per unit
At €31.99 during the deal: Net of VAT: €26.88 Referral fee: −€4.80 FBA fee: −€3.23 COGS: −€9.50 Advertising: −€4.00 Deal fee, 0.75% of deal sales: −€0.24 = €5.12 profit per unit
€10.88 ÷ €5.12 = 2.13. You need 113% more units to stand still, before the €16 upfront deal fee.
Every €1 of discount costs you €0.69 of profit. VAT absorbs €0.16 and the referral fee €0.15. The FBA fee, COGS and ad cost per unit stay where they were.
For this product: 10% off: 1.39× the units 15% off: 1.68× 20% off: 2.13× 25% off: 2.90× 30% off: 4.56×
The table in the image works for any product on Amazon.de in a 15% category. Find your profit margin per unit (after fees, COGS and ads, as a % of the price excluding VAT) and your discount. The cell is the multiplier.
Black Friday Week deals carry the same fees, plus the peak fulfilment fee from 15 October. On this parcel that moves 2.13× to 2.18×.
What discount are you planning for Black Friday Week, and what multiplier does it need?