From Narita Airport you can take the Narita Express to Tokyo Station or Shinagawa Station if you are a train.
Or if you have plenty of time and can do it cheaply, we also recommend taking a bus to the Tokyo station that is coming from the airport.
If you have a JR pass Shinkawa station or Tokyo station to Odawara station Shinkansen is convenient.
However, if you do not have it, you can go without changing trains on the Tokaido line.
If you go by bus from the airport to Tokyo station, please buy a ticket at the bus ticket sales counter in the arrival lobby. (The bus I always take is the Keisei bus.)
I think that it depends on time, but I think that I can go to Tokyo station at 1,000 yen.