ERV as per US GAAP
Take a scenario for Capital transaction:
1) Create a PO for 100 EUR where the functional currency is in USD. The corrsponding amount in USD is 144$
2) Create a Receipt for 100 EUR, which will transact in USD for 144$ and is posted in Projects
3) Create an Invoice for 100 EUR, but the day when the invoice was received due to currency difference the amount in USD is 148$.
4) This difference of 4$ is Exchange Rate Variance and is posted in Projects and is marked as Capitalizable.