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Permille Ratios Out Of 1,000

Calculator

Calculate Any Value After A Permille Decrease

Decrease a value by a chosen permille rate and see the reduction amount, final value, and interactive before/after visual.

Formula: new value = base × (1 - permille / 1000)

Permille Decrease Calculator

Apply a rate to your starting value and inspect the change with an interactive before/after visual.

This calculator is fixed to decrease mode. Enter a non-negative rate.

Hover or tap a bar to highlight it and inspect values.

Direction

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Rate applied

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Change amount

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Starting value

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New value

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What Your Result Means

The result shows how much value is removed at your permille decrease rate and what remains. This is useful for modeling fine-grained declines in rates, quality, or volume.

FAQ

  • Can I decrease by more than 1000‰?
    You can enter it, but rates above 1000‰ reduce more than the full starting value and can produce negative results.
  • Why use permille for decreases?
    Permille is useful for small relative drops where percent can feel too coarse.
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