Write SQL query to solve given problem: What is the percentage of countries in the Middle East and North Africa that have finished reporting on their real external debt?. Keep the solution inside sql tag ```sql [SQL-Query] ```
SELECT CAST(SUM(CASE WHEN ExternalDebtReportingStatus = 'Actual' THEN 1 ELSE 0 END) AS REAL) * 100 / COUNT(CountryCode) FROM Country WHERE region = 'Middle East & North Africa'