Why there is an incorrect amount for EAC and ETC in the Manage Project Forecast?

Summary:

The Contract Funding is 4,641,231.00

The Revenue Generated for this particular project is 3,978,776.83 which is showing correctly.

However the ETC should be contract Funding - Rev Rec = ETC

etc / backlog = 662,454.17

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Would you know why this is happening?

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