The Billing Rate shown on Prebills, Invoices, etc. is actually calculated on the fly by dividing the bill amount by the hours. The problem you are experiencing is a result of using rates with “cents”. In some cases when the bill amount is calculated the result has to be rounded. When you then take that rounded amount and divide it by the time you can get a different rate. The only way around this is to hard code the rates in invoice styles or EDI templates. HOWEVER, if this is for EDI Billing the third party company will do their own math and most likely reject the invoice. We recommend not using cents in your rates since we require everything be mathematically correct and we store only 2 digits to the right of the decimal.