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計算

割引計算機

無料の割引計算機。あらゆるセールや値下げにおける割引額、最終価格、実質割引率を算出します。ショッピング、Eコマース、価格設定に。

Runs in your browser

Sticker to checkout, after the cut.

A$sticker price with%off

Discount is computed on the sticker price, not on any pre-existing markdown.

編集者注

Understanding · Per cent off, per cent on.

この詳細な解説章は現在、英語版のみで提供されています。上の変換ツールはあなたの言語で動作しますが、長文の解説記事はまだ翻訳されていません。

よくある質問

Quick answers.

How do I calculate a 30% discount?

Multiply the original price by 0.30 to get the savings, then subtract from the original. Or just type your numbers in.

Can I stack two discounts (20% + 10%)?

Yes — apply each in sequence. 20% off then 10% off is NOT 30% off; it's 28% (0.8 × 0.9 = 0.72).

How do I figure the effective discount?

Divide savings by original price, then × 100 for the percentage. So $20 off $80 = 25% effective discount.

Does it handle tax?

Tax is usually applied to the discounted price. Apply your discount first, then add VAT/sales tax with our VAT calculator.

Is the calculator free?

Yes — fully free, no signup, runs in your browser.

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