We just released an improvement to your Rewardful dashboard: from now on all summaries of financial data will be denominated in a single currency:
Previously, Rewardful displayed a summary of each currency used in your account. For merchants trading in multiple currencies, this made it difficult to track how your affiliate program was performing. Converting everything to a single currency (your "display currency") makes this much simpler.
Individual transactions will still be displayed in the original (or "settlement") currency, so you'll still be able to reconcile specific sales between Rewardful and Stripe. Your display currency is only used when summarizing financial data.
Learn more: Choosing a display currency