Fix FX conversion for Tremendous methods (#5268)

apps/labrinth/src/queue/payouts/flow/tremendous.rs

@@ -90,6 +90,11 @@ pub(super) async fn create(
             );
             let net_usd = gross_usd - total_fee_usd;
 
+            let net_local = net_usd.mul_round(
+                usd_to_currency,
+                RoundingStrategy::MidpointTowardZero,
+            );
+
             Ok(PayoutFlow {
                 net_usd,
                 total_fee_usd,
@@ -105,8 +110,8 @@ pub(super) async fn create(
                     // To offset this, we (the platform) take the fees off before
                     // we send the request to Tremendous. Afterwards, the method
                     // (Tremendous) will take 0% off the top of our $10.
-                    value_denomination: net_usd.get(),
-                    value_currency_code: TremendousCurrency::Usd.to_string(),
+                    value_denomination: net_local.get(),
+                    value_currency_code: currency_code,
                     net_usd,
                     total_fee_usd,
                     delivery_email,