14/9 PL/SQL: Statement ignored 14/13 PLS-00222: no function with name 'P' exists in this scope : Package Specification :-
`CREATE OR REPLACE PACKAGE dt_pkg IS
  PROCEDURE Simpleint(p NUMBER,n number,r number := 10);
  PROCEDURE Compoundint(
   p number,n number, r number);
END dt_pkg;
/`

Package BODY:-

    CREATE OR REPLACE PACKAGE BODY dt_pkg  IS
         PROCEDURE Simpleint (p NUMBER,n number,r NUMBER) IS
                     si number :=0;
          BEGIN
              si:=p*n*r;
	       DBMS_OUTPUT.PUT_LINE('sIMPLE INT: '||si);
       END Simpleint;
        PROCEDURE Compoundint (p number,n number,r number) IS 
         ci number:=0;
         BEGIN
        ci:=p(1+r/100)**n;
	DBMS_OUTPUT.PUT_LINE('COMPOUND INTEREST: '||ci);
      END Compoundint;
      END dt_pkg;
     /
ERROR I GET 
LINE/COL ERROR
-------- -----------------------------------------------------------------
14/9     PL/SQL: Statement ignored
14/13    PLS-00222: no function with name 'P' exists in this scope

please help 
Thank you.