Black Friday Calculator
Find out if your Black Friday promotion will actually be profitable. Compares monthly baseline vs BF scenario (discounted price × volume multiplier × residual margin). Shows scenarios from 15% to 50% off side by side and identifies the maximum sustainable discount.
Baseline (normal month)
Total cost: purchase + taxes + packaging
Units per month
Black Friday scenario
Typical BF: 3–10×
% of price that becomes shipping cost
Optional
How to think about the volume multiplier
- • Impulse categories (fashion, beauty): 5–10× in BF
- • Deliberate categories (electronics, furniture): 3–6×
- • Recurring consumption (supplements, pet food): 2–4× (consumption already steady)
- Check your history if you have run BF before. If it is your first time, stay at the lower end — overestimating volume is the most common mistake.
Costs this calculator does not yet consider
- • Extra media investment (use the ROAS calculator for that)
- • Operational costs (extra staff, packaging)
- • Opportunity cost (stock allocated vs other channels)
- • Post-BF impact (customers get used to the discount)
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Articles to put this tool to work
Inteligência Competitiva na Black Friday: Guia 2026
Como usar inteligência competitiva pra vencer a Black Friday: o que monitorar antes, durante e depois.
Esquenta Black Friday 2025: O Que os Concorrentes Já Estão Fazendo
A 6 semanas da BF, o que apareceu primeiro nos concorrentes monitorados pelo Batedor.
Pós-Black Friday 2025: O Que os Dados Mostraram
BF 2025: profundidade média, frequência de cupom e os 3 padrões competitivos que se repetiram.
Playbook de Black Friday 2026: O Que Mudou e o Que Repetir
Calendário, mecânicas vencedoras de 2025 e os 5 sinais competitivos que valem ouro pra dimensionar profundidade em 2026.
Benchmarks de Desconto por Categoria no E-commerce Brasileiro (2026)
Profundidade média de desconto, frequência de cupom e tipo de mecânica dominante em 8 categorias do comércio eletrônico brasileiro, com base em 480+ lojas monitoradas.
