From the GP team, a look at exchange rate calculations.
“The most common questions we receive related to financial multicurrency revaluations are associated with unexpected average exchange rates during the financal revaluation process and how the system ca…”
— Read on community.dynamics.com/gp/b/dynamicsgp/posts/why-is-my-average-exchange-rate-not-what-i-expected-in-dynamics-gp-and-how-did-gp-calculate-the-realized-gain-or-loss-of-an-account-during-financial-revaluation