1-- Formatted
2SELECT decimal_column * 100 || '%' AS percentage FROM table_name;
3-- Rounded
4SELECT round(decimal_column * 100, 2) || '%' AS percentage FROM table_name;
5-- Value
6SELECT decimal_column * 100 AS percentage FROM table_name;
7SELECT TO_CHAR(decimal_column,'fm990D00','NLS_NUMERIC_CHARACTERS = ''.,''')
8 FROM dual;