In an earlier version of FO D365 user had the possibility to see the percentage complete on a total level for the whole project. The feature is now gone.
The estimate calculation now requires that the "forecast" is entered for all transaction types and compares only expense against expense forecast and hour against hour forecast, etc. This is so far correct if we want to look at the forecast for each transaction type. However, the total forecast model should be able to estimate at an overall level.