How to call stored procedure from within another......?

CREATE OR REPLACE PROCEDURE EMPANNSAL(P_SAL IN OUT NUMBER)
IS
BEGIN
  P_SAL := P_SAL*12;
END EMPANNSAL;
/
-- INVOKING FROM THE HOST

VARIABLE G_SAL NUMBER
BEGIN
  :G_SAL := 5000;
END;
/

PRINT G_SAL
EXECUTE EMPANNSAL(:G_SAL)
PRINT G_SAL


-- INVOKE FROM ANOTHER PROCEDURE
CREATE OR REPLACE PROCEDURE EMPANSAL(P_DEPT IN NUMBER)
IS
  CURSOR EMPCUR IS SELECT LAST_NAME,SALARY
                   FROM EMPLOYEES
                   WHERE DEPARTMENT_ID=P_DEPT;
  V_SAL NUMBER;
BEGIN
  FOR EMPREC IN EMPCUR LOOP
      DBMS_OUTPUT.PUT_LINE(EMPREC.LAST_NAME||' GETS ANNUALY ');
      V_SAL := EMPREC.SALARY;
      EMPANNSAL(V_SAL);
      DBMS_OUTPUT.PUT_LINE(V_SAL);
  END LOOP;
END EMPANSAL;
/
SHO ERR
EXECUTE EMPANSAL(50)