do both rates to compare and test

models/intermediate/core/int_core__verification_payments.sql

@@ -35,6 +35,7 @@ select
     p.amount as amount_in_txn_currency,
     p.currency,
     (p.amount * r.rate) as amount_in_gbp,
+    (p.amount * nr.rate) as new_amount_in_gbp,
     ps.payment_status,
     p.notes
 from stg_core__verification_to_payment vtp
@@ -49,3 +50,8 @@ left join
     on p.paid_date_utc = r.rate_date
     and p.currency = r.from_currency
     and r.to_currency = 'GBP'
+left join
+    int_simple_exchange_rates nr
+    on p.paid_date_utc = nr.rate_date_utc
+    and p.currency = nr.from_currency
+    and nr.to_currency = 'GBP'