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Mathify

金融

即时、私密且免费

折扣计算器.

计算销售价格和节省金额

此计算器尚未完全翻译——部分文本以英文显示。

设备端计算无需注册
01

输入数值

输入时结果会更新。

Mode
最终价格: US$80.00

最终价格

US$80.00
节省: US$20.00

节省

US$20.00
原价:$100.00
Effective Discount:20.00%

使用方法

  • Basic: Calculate final price with a single discount
  • Multiple: Apply successive discounts (e.g., "20% off + extra 10% off")
  • Reverse: Find the original price before discount
  • Find %: Calculate what discount percentage was applied

Cite this calculator

Canonical URL: https://mathify.one/zh/finance/discount

Cite as: Mathify. (2026). 折扣计算器. https://mathify.one/zh/finance/discount

Use Cases

Shopping during sales

Quickly determine the final price of an item during a store-wide sale or when using a percentage-off coupon, helping you stay within budget.

Example: A $80 jacket with a 25% discount: sale price = $60, savings = $20.

Comparing deals

Evaluate different discount offers on the same item to see which one gives you the best price, especially when discounts vary.

Example: Compare 30% off a $50 item vs. 20% off a $45 item to see which is cheaper.

Frequently Asked Questions

How do I calculate the sale price using this discount calculator?
Enter the original price of the item and the discount percentage (e.g., 20 for 20% off). The calculator will subtract the discount amount from the original price to give you the sale price, and also show you how much you save.
Can I use this calculator for discounts that are not percentages, like 'buy one get one free'?
This calculator is designed for percentage-based discounts only. For other types of offers, you may need to manually calculate the equivalent percentage or use a different tool.
Does the discount calculator include taxes or shipping costs?
No, this calculator only computes the sale price and savings based on the original price and discount percentage. Taxes, shipping, and any additional fees are not included and would need to be added separately.

Tips & Common Mistakes

Tips

  • Always double-check the discount percentage you enter – a common mistake is entering 0.20 instead of 20.
  • If the discount is not a whole number, like 15.5%, enter it as 15.5 for accurate results.
  • Use the savings amount to decide if the deal is worth it, especially if you are considering buying multiple items.
  • Remember that the sale price is before tax, so factor in additional costs if needed.

Common Mistakes to Avoid

  • Entering the discount as a decimal (e.g., 0.25) instead of a percentage (25).
  • Forgetting to include the original price in the correct currency or with the right number of decimal places.
  • Assuming the calculator includes taxes or shipping, which it does not.

Last updated: August 13, 2026