>I need to be able to round a dollar amount to the nearest $5.00 programmatically.
>
>for example($21.85 -> $20.00, $23.00 -> $25.00)

Try

yAmt = $21.85
? yAmt - (yAmt%10) + ;
	IIF((yAmt%10)>=$7.50, 10, ;
	IIF((yAmt%10)>=$2.50, 5, $0.00))