Yo newyork city bhanne Thao tira 2-3 din jati ghumna kati dollar kharcha Huncha hola?

Depends how you wanna do?
Do u have a room to stay?
Does ur plan include empire states; statue of liberty?
I will say 300 each person

I think 300 is less too if intelligent guy is planning to stay in the motel

Hoina sutna ko lagey bandobasta cha so be it in the floor rati sutna ko lagey

 Sky is the limit how much you can spend?
From $1 Hot dog ( at Street Vendor)  to $ 1,000 Golden Opulence Sundae (at Serendipity3)

7 Days Unlimited Metro Card is $ 29
Entry fees for places you want to go range from $5-$50 (each)
(Including Museums, Liberty, Empire State, MoMa,Madame Tussauds, Museum of Sex and so on )
Entertainment
Movie and comedy shows $15-$50
Broadway Shows $50 and up
Gentleman Clubs---- Depends how Boka you are
Food $1-$1000
Cab Ride (On your own risk)
I can go on and on so Take a calculator do the number

 

Adventurer my estimate is based on normal tourism in NY for Nepali.
I am sure gentlemens club are cheaper in other states than in NY so you can skip that option.
Museum of natural history ; metropolitian museum and other 100 of museums in ny are for those who are interested on those thing; for normal visit you can skip that too
Museum of sex is nothing worthy; been there and realize that was just waste of money. A big porn shop has better matterial than they have.
For average nepali visit in NY momo from jackson height and thali from thakali will be great no need to waste 100 per drink in soho.
You dont need whole week metro pass !
Be economical enjoy NY.