Does this sound the right amound of money to go to japan?

Question:

I did some calculations and i work out that it would cost approximately £4000 or $6500 (if you we're flying from the UK) staying ina standard hotel for 2 weeks does that sound about right?

Answer:

Air fare: You need $1000-1500 if you are departing from US

Hotel: Usually, you need $100 per night if you want to stay at a hotel.
If you want to save money, you need to stay at a hostel which will cost $30-50 per night.
If you want to stay at a luxury hotel, you need $200-300 or more.

Food, transportation and others: You need $50-100 or so per day. If you want to enjoy shopping, you need more.

So you need $100 for hotel and $75 for others per day. If you want to stay in Japan for 2 weeks, the total cost will be $2450.