Wrong Accural Amount Generated by Receipt Accrual Period End Program

Hi,

We have a below scenario:

PO:A

Amount:51000 CNY

Exchange Rate of the PO is: CNY->USD 0.1626307144 USD->CNY 6.1489

The accrual amount in Uninvoiced receipt report is USD 8294.17

The GL journal Amount generated is USD 8294.11 and CNY 50999.67

So we wonder why there is the difference between them and what's the calculating logic of Uninvoiced receipt report and Receipt Accrual Period End Program?

Thank you.