>>You have to specify the width and the decimal places when using STR(). Try this:
>>
>>? STR( SumBooked / SumQuantity * 100,5,2) +"%"
>>
>>
>>Regards
>>Kevin
>
>Good point,Kevin, but you don't need to. That is to be precise about how many sig figs, dec places etc. But an argumentless STR() returns a value OK.

Hi,
From Help:
If nLength isn't included, the length of the character string defaults to 10 characters.
If nDecimalPlaces isn't included, the number of decimal places defaults to zero.