Crystal Reports ToWords rounding issue

Message

     Hello.  I am having a rounding issue using ToWords.  I am using the following formulas:

@BonusPaid:
If {FifthMailing.BONUS BASIS}= "Per Acre" then {FifthMailing.BONUS}*{FifthMailing.NET ACRES} else {FifthMailing.BONUS}

@BonusPaidToDollars:
UpperCase (ToWords({@BonusPaid})+" DOLLARS"+ ReplicateString(" ", 50))

Normally, no issues with the above formulas.  TODAY, I had a result of the @BonusPaid = $1568.07

HOWEVER, the @BonusPaidToDollars resulted in:
One Thousand Five Hundred Sixty-eight and 06/100 Dollars

Note the difference of 1 cent in the @BonusPaidToDollars amount.

The NetAcres field is six decimal places with a leading zero.

How do I fix this?

Thanks.