How to run my program??

Hi every body I am running late from my first homework using PL/SQL to connect to Oracle DB 10g. PROBLEM To
Write a PL/SQL program that calculates the retail price for an item when the product name is given. The cost is stored in a table PRODUCTS (Prod_no, Name, Cost),
-Assume that the profit margin is 50% and that VAT is inclunded in the retail price.
-The program should show the retail price and the net price (price without VAT).

my answer which a don't know to run my program
v_cost number(6,2),
p_name varchar2(30),
price number(6,2),
vat number(6,2),
tatal number(6,2);
begin
p_name :='Toshiba DVD Player'
select= cost, into v_cost,
from products
where name=p_name;

price:= v_cost*1.5;
vat:= price*0.175;
total:= price + vat;

DBMS_OUTPUT.PUT_LINE(name||':');
DBMS_OUTPUT.PUT_LINE('Cost: £'||v_cost);
DBMS_OUTPUT.PUT_LINE('Price:£'||price);
DBMS_OUTPUT.PUT_LINE('VAT: £'||vat);
DBMS_OUTPUT.PUT_LINE('Total: £'||total);
end;
/

I don't know which table I HAVE TO CREATE to run my program does it TABLE PRODUCTS?? (as mention in the problem)OR TABLE TOSHIBA_DVD_PLAYER (as mention in my program)????????????