KTP Calculator
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KTP Calculator

Practical calculator workspace for money, dates, and conversions. Deterministic answers, local drafts, and clear explanations.

Client-side only< 50ms latency

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Categories

  • Core math
  • Money & finance
  • Conversions
  • Dates & time

Resources

  • How it works
  • Release notes

© 2026 KTP Calculator. Built for clarity, not cleverness.

Designed to feel clear before it feels clever
Home/Discount and markup
MoneyLaunch setDiscount and markup

Calculator workspace

Check the total after discount, markup, and tax

Model sale pricing and markup decisions with each step exposed, so the final total stays explainable instead of becoming checkout guesswork.

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Live workspace

Work out the real checkout total after discounts, markup, and tax

Use discount mode to see a sale price. Switch to markup mode when you want to price up from a base amount instead.

Step 1

Set the base price

Start with the amount before any pricing changes are applied.

Starting price before discount, markup, or tax.

Choose whether the adjustment reduces or increases the base amount.

Step 2

Add pricing rules

Enter the discount rate and optional tax to see the sale total.

Percentage taken off the base amount before tax.

Applied after the discount or markup is calculated.

Result is current

The latest submitted result matches the input shown above.

Primary result

Final total

$55.34

discount

Pricing setup

Base
$68.00
Mode
Discount
Adjustment
25%
Tax
8.5%

Base amount

$68.00

Adjustment amount

$17.00

Adjusted subtotal

$51.00

Tax amount

$4.34

Why this result

  • Apply a 25% discount to $68.00 for an adjustment of $17.00.
  • Subtract that amount to reach $51.00 before tax.
  • 8.5% tax on $51.00 adds $4.34 for a final total of $55.34.

Assumptions

  • Tax is applied after the discount or markup.
  • Currency formatting is display-only and does not imply currency conversion.

Use cases

Decision support for offers and margins

  • Check whether a sale price still lands where you expect after tax.
  • Estimate markup impact before updating a list price.
  • Keep discount math and tax math separate so the total stays auditable.

Calculation rules

What the calculator assumes

  • Tax is applied after the discount or markup.
  • Discounts cannot exceed 100% of the base amount.
  • Currency formatting is for display only and uses USD conventions.