RoundCurrency ( Amount )

Rounds currency to desired denominations

Average rating: 4.4 (21 votes) Log in to vote

Sean Moore
inRESONANCE Inc.
http://www.inresonance.com

Sample input:

RoundCurrency (1.23)

Sample output:

1.25

Function definition: (Copy & paste into FileMaker's Edit Custom Function window)

/*
Syntax: RoundCurrency ( number )


This function allows you to round up, down, or normally to an interval of your choosing. This may be useful when dealing with money in some countries which round their currency to the nearest nickel or dime. Unless, the actual input is 0, the minimum output of this function is the precision. For instance, if precision is 0.05, and the amount is 0.01, your result will be 0.05, not 0.

*/


Let
(	[
//   Set Values in this block

	~precision = .01 //Round to the nearest... (i.e. to round to the nearest cent, set to 0.01, to the nearest yen, set to 1. 

;	~roundingDirection = "normal" //   for normal rounding, set to "normal"; to round up to the nearest increment, set to "up"; to round down to the nearest increment, set to "down"

//   Do not modify below here

;	~n1 = Amount * ( 1/~precision )
;	~n2 = Case
		(	~roundingDirection = "normal"; Round ( ~n1; 0 )
		;	~roundingDirection = "up"; Ceiling ( ~n1 )
		;	~roundingDirection = "down"; Floor ( ~n1 )
		)
;	~roundedAmount = ~n2 / ( 1/~precision )
;	~finalAmount = Case
		(	Amount = 0; 0
		;	~roundedAmount = 0; ~precision
		;	~roundedAmount
		)

];

	~finalAmount

)

This function provides a tool for rounding currency to any desired denomination, not just those that are base 10. Note, for very small amounts, unless the input is actually 0, the minimum output is the minimum denomination.

This function could be useful for building solutions that handle currency but may be distributed to countries with different cash rounding policies. Implement it throughout a solution, and you only have to change your settings once.

Comments

		Serge May 17, 2019
Seems to work like a charm! (I've modified it for my own use to have precision and roundingDirection as part of the parameters) THANKS!

Note: these functions are not guaranteed or supported by BrianDunning.com. Please contact the individual developer with any questions or problems.

RoundCurrency ( Amount )

Comments

Support this website.

Support this website.