# NSDecimalRound(_:_:_:_:) Rounds off the decimal value. ``` func NSDecimalRound(_ result: UnsafeMutablePointer, _ number: UnsafePointer, _ scale: Int, _ roundingMode: NSDecimalNumber.RoundingMode) ``` ## Discussion Rounds `number` off according to the parameters `scale` and `roundingMode` and stores the result in `result`. The `scale` value specifies the number of digits `result` can have after its decimal point. `roundingMode` specifies the way that number is rounded off. There are four possible values for `roundingMode`: [`NSDecimalNumber.RoundingMode.down`](/documentation/Foundation/NSDecimalNumber/RoundingMode/down), [`NSDecimalNumber.RoundingMode.up`](/documentation/Foundation/NSDecimalNumber/RoundingMode/up), [`NSDecimalNumber.RoundingMode.plain`](/documentation/Foundation/NSDecimalNumber/RoundingMode/plain), and [`NSDecimalNumber.RoundingMode.bankers`](/documentation/Foundation/NSDecimalNumber/RoundingMode/bankers). For thorough discussions of `scale` and `roundingMode`, see [`NSDecimalNumberBehaviors`](/documentation/Foundation/NSDecimalNumberBehaviors). For more information, see [Number and Value Programming Topics](https://developer.apple.com/library/archive/documentation/Cocoa/Conceptual/NumbersandValues/NumbersandValues.html#//apple_ref/doc/uid/10000038i). --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)