---
title: "grouping(_:)"
framework: foundation
role: symbol
role_heading: Instance Method
path: "foundation/integerformatstyle/percent/grouping(_:)"
---

# grouping(_:)

Modifies the format style to use the specified grouping.

## Declaration

```swift
func grouping(_ group: IntegerFormatStyle<Value>.Percent.Configuration.Grouping) -> IntegerFormatStyle<Value>.Percent
```

## Parameters

- `group`: The grouping to apply to the format style.

## Return Value

Return Value An integer percent format style modified to use the specified grouping.

## See Also

### Customizing style behavior

- [decimalSeparator(strategy:)](foundation/integerformatstyle/percent/decimalseparator(strategy:).md)
- [locale(_:)](foundation/integerformatstyle/percent/locale(_:).md)
- [notation(_:)](foundation/integerformatstyle/percent/notation(_:).md)
- [precision(_:)](foundation/integerformatstyle/percent/precision(_:).md)
- [rounded(rule:increment:)](foundation/integerformatstyle/percent/rounded(rule:increment:).md)
- [scale(_:)](foundation/integerformatstyle/percent/scale(_:).md)
- [sign(strategy:)](foundation/integerformatstyle/percent/sign(strategy:).md)
- [IntegerFormatStyle.Percent.Configuration](foundation/integerformatstyle/percent/configuration.md)
- [NumberFormatStyleConfiguration](foundation/numberformatstyleconfiguration.md)