The Utility Base

Discount Calculator

Calculate Final Price, Savings & Stacked Discounts

Calculate the final price after applying discounts by percentage or fixed amount. Supports double/triple stacked discounts and tax calculations.

🏷️ What is Discount Calculation?

Discount calculation determines the final price after applying discounts to the original price. Stacked discounts (double, triple) are applied sequentially, so the effective discount is less than the simple sum of individual discount rates.

📝 How to Use

  1. Enter the original price
  2. Select discount type (percent or fixed amount)
  3. Enter the first discount value
  4. Optionally add 2nd and 3rd stacked discounts
  5. Toggle tax option and enter tax rate if needed

💡 Smart Shopping Tips

  • Apply larger discounts first for stacked discounts
  • 20% + 30% stacked discount equals ~44%, not 50%
  • Tax is applied after all discounts
  • Combine coupons with sale discounts for extra savings
  • Always check the effective discount rate against the original price

❓ FAQ

How are stacked discounts calculated?

Stacked discounts are applied sequentially. E.g.: $100 with 20% + 30% off = $100 x 0.8 = $80 x 0.7 = $56 (total 44% off).

Percentage vs fixed amount discount?

Percentage discounts deduct a proportion of the price, while fixed amount discounts deduct a set value. For expensive items, percentage discounts often save more.

When is tax calculated?

Tax is applied to the final discounted price. So the more discount you get, the less tax you pay.

📚 Guia de cálculo local

Lógica da fórmula

Aplicamos fórmulas públicas de finanças, empréstimos, razão e conversão.

Escopo das fontes

Referências seguem padrões públicos e práticas comuns de cada país.

Premissas

Impostos, taxas e limites variam por região e instituição.

Result Interpretation

Use este resultado como cenário base. Antes de decidir, compare com proposta real e regras fiscais locais.

Padrão local

Moeda: BRL

Unidades: metric

Modelo tributário: US payroll estimate

Aviso regulatório

Esta ferramenta usa presets regionais para estimativa. Termos reais e limites legais variam por instituição e legislação local.

Próximas ações recomendadas

  • Compare pelo menos 2-3 instituições locais antes de fechar.
  • Confirme por escrito taxas, impostos e cláusulas de amortização antecipada.
  • Rode cenário de estresse com +1-2% de juros.

Antes de uma decisão real, confirme as regras atuais da instituição local.

Ver detalhes da política