Clarify on APIs of Calculating Total Revenue and Accurate via APIs

Hi Apple team,

We'd like to clarify some questions below for our Data team in ELSA Corp.

1. Source of Currency Exchange Rates:

We noticed that Apple has been utilizing a rolling average for the past month to calculate currency exchange rates. Could you please inform us about the specific source used for obtaining these exchange rates?

1. Calculating Total Revenue via APIs:

In the documentation, it is mentioned that "proceeds" represent the amount derived after deducting taxes and fees from the customer price. In theory, the sum of proceeds should equate to the total revenue for the month as per the definitions provided. However, when we examined this, even in the case of the US (where there are no currency exchange rate issues), we observed disparities between the figures displayed in the dashboard and those obtained through the APIs.

1. Availability of Accurate APIs:

Are there any APIs within Apple's platform that can provide data matching the numbers found in the AppStore Dashboard and reports, specifically concerning downloads and revenues?

Thanks, Vinh