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# Factorio Prototype Docs Version 2.0.7

## EffectValue :: float Example code

Precision is ignored beyond two decimals - `0.567` results in `0.56` and means 56% etc. Values can range from `-327.68` to `327.67`. Numbers outside of this range will wrap around.

## Example

    0.07 -- 7% bonus

Type used in

- ChangeRecipeProductivityModifier::change
- Effect::consumption
- Effect::speed
- Effect::productivity
- Effect::pollution
- Effect::quality