How do I calculate a discount price?

Multiply the original price by the discount rate to get the savings, then subtract from the original: final price = price − (price × rate). For example, 15% off $12,000 saves $1,800, final price $10,200. Enter any cart total in the tool above to see it instantly.

What is the formula for percent off?

Percent-off formula: discount amount = original price × (discount % / 100); sale price = original price − discount amount. This planner uses a tiered schedule instead of a custom percentage: 5% from $5,000, 10% from $6,000, 15% from $10,000.

How do tiered cart discounts work?

The cart total unlocks one discount tier: $5,000–$5,999 → 5% off, $6,000–$9,999 → 10% off, $10,000+ → 15% off, under $5,000 → no discount. Only the highest tier reached applies — discounts are not stacked.

How much do I save with a 15 percent discount?

15% off means you keep $15 of every $100: on a $10,000 cart you save $1,500 and pay $8,500. Enter your own total in the planner for the exact number.

Can I use a custom discount percentage with this planner?

No — this planner follows a fixed tier schedule (5/10/15%) from the vendored discount engine, so the discount % is set by your cart total, not entered by you. For a one-off custom percentage, use the formula above instead.

Does the planner include sales tax or shipping?

No — it computes the promo discount on the cart subtotal only. Add sales tax and shipping to the final price yourself afterwards, since tax rates and shipping rules vary by location.

Promo Discount Planner

What is Promo discount planner?

Promo Discount Planner — Plan promo discounts in USD — tiered discount calculator with 5%, 10%, or 15% off based on cart total, showing savings and final price instantly.

The discount math is the MIT-licensed js-shopping-calculator-program tier engine (vendored): a cart of $5,000–$5,999 gets 5% off, $6,000–$9,999 gets 10% off, $10,000+ gets 15% off, below $5,000 gets no discount. Discount amount = cart total × tier rate; final price = total − discount. Limitations, stated honestly: the engine picks ONE tier from the cart total — it does not accept a custom discount percentage, does not do per-item quantity math, and does not add sales tax. Thresholds and rates are the engine's own schedule, shown in USD.

Why use this promo discount planner?

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Built for promo discount planner

Plan promo discounts in USD — tiered discount calculator with 5%, 10%, or 15% off based on cart total, showing savings and final price instantly.

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Transparent & honest

One discount tier per cart: only the highest tier reached applies; tiers do not stack.

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Private by design

Everything runs in your browser. Your inputs never leave your device.

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Works everywhere

Fully responsive — perfect on desktop, tablet, and mobile. No app needed.

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Regularly updated

Regularly maintained and reviewed to ensure accuracy.

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Free forever

No accounts, no limits, no watermarks. Use Promo Discount Planner as much as you need.

How to use Promo Discount Planner

1Enter your full cart total before any discount in the "Cart total before discount (USD)" field.
2Run the tool — the promo code savings calculator applies the tier your total reaches: 5% from $5,000, 10% from $6,000, 15% from $10,000.
3Read the discount tier applied, the discount amount, and the final price after discount.
4Use the savings percent to compare this promo against other deals or coupon codes.
5Adjust your cart total upward past the next tier threshold to see how much more the percent-off calculator would save you.

What can you do with Promo Discount Planner?

Discount calculator — Plan promo discounts in USD — tiered discount calculator with 5%, 10%, or 15% off based on cart total, showing savings and final price instantly.
Sale price calculator — Plan promo discounts in USD — tiered discount calculator with 5%, 10%, or 15% off based on cart total, showing savings and final price instantly.
Percent off calculator — Plan promo discounts in USD — tiered discount calculator with 5%, 10%, or 15% off based on cart total, showing savings and final price instantly.
Shopping discount calculator — Plan promo discounts in USD — tiered discount calculator with 5%, 10%, or 15% off based on cart total, showing savings and final price instantly.
Tiered discount calculator — Plan promo discounts in USD — tiered discount calculator with 5%, 10%, or 15% off based on cart total, showing savings and final price instantly.

Good to know

One discount tier per cart: only the highest tier reached applies; tiers do not stack.
No custom discount percentage, per-item quantity math, sales tax, or shipping — the engine only knows cart total → tier.
Tier thresholds ($5,000 / $6,000 / $10,000) and rates (5% / 10% / 15%) are the vendored engine's schedule, presented in USD.
Cart totals must be above $0; zero or negative input is rejected rather than computed.

How it works

The discount math is the MIT-licensed js-shopping-calculator-program tier engine (vendored): a cart of $5,000–$5,999 gets 5% off, $6,000–$9,999 gets 10% off, $10,000+ gets 15% off, below $5,000 gets no discount. Discount amount = cart total × tier rate; final price = total − discount. Limitations, stated honestly: the engine picks ONE tier from the cart total — it does not accept a custom discount percentage, does not do per-item quantity math, and does not add sales tax. Thresholds and rates are the engine's own schedule, shown in USD.

Examples

Mid-range cart hits the 10% tier

Tier 10%, discount amount $750.00, final price $6,750.00, you save 10%.

Premium cart hits the 15% tier

Tier 15%, discount amount $1,800.00, final price $10,200.00, you save 15%.

Small cart gets no discount

Tier 0%, discount amount $0.00, final price $499.99.

People also search for these — this tool handles them all:

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