The Calculate Currencies business rule is based on the dimensions and members on the form. It converts data from the local currency to the reporting currency specified on the form, applying the exchange rate conversions. It:
Does not calculate subtotals. To subtotal values, run the Calculate Form business rule (or a customized business rule that includes aggregation) after converting currencies.
Ignores #MISSING values.
Can be turned on or off by associating or disassociating it with forms during form design.
Is set by default to not run when saving data.