How to calculate the cost of website development?

Question

Mobile development

Hello.
It is necessary to calculate the cost and time required to develop a site similar to booking.com.
As well as mobile applications for it, for Android / ios. Atleast approximately.
What specialists are needed, at what cost of their work, and how much time.
For example:
Web engineer - 2 people. 4 months work.
1 month 40 thousand, total 640 thousand
Client service programmer - 2 months. 30 thousand, total 60 thousand.
layout designer...
designer...
third-party services (logo, selection of keywords for search, etc.)
TOTAL: 8 months. work, 1 million 800 thousand.
Update: the numbers are just an example, otherwise, judging by the comments, people think that I indicated the real numbers.
Update 2:
- server programmer - how many people?
- client web programmer - 1 person
- coder - 1 person
- anroid application programmer - 1 person
- ios application programmer - 1 person
- admin - 1 person
- product manager - 1 person
- tester - 1 person
Please correct how many months you need .
And, as I understand it, the product manager coordinates all the work, right?

Answer 1

You most likely will not take my advice as a guide to action. It is your right. I don't understand why I'm giving away this free advice.
I won't beat around the bush. The essence of the speech is to dissuade you from further analysis of the situation, to abandon the idea of ​​\u200b\u200bimplementation.
I myself was involved in the web from 1997 to 2012. During this time, I saw many similar failures.
In my opinion, successful business leaders are those who know how to do everything themselves, but hire employees to do their own work in order to free themselves from part of the work, while always teaching their subordinates something within the craft.
There is a situation when things are going well, working capital is growing, there are surpluses. In such and only such cases, you can hire a person more experienced than you. If you find such a person. And these people have been looking for years. A person will come and bring a new construct. As they say, it will destroy all the stupors hanging during the activity.
To take on such a project, you must already have a team formed, you must already have dozens of similar "smaller", "local" projects. You must have 100% knowledge of how to implement everything yourself.
Let's consider another situation. If you were approached by a tostosum client. And at this stage you need to name the price. I recommend finding the strength to abandon the project. No matter how much money you have, without experience you will need at least 10 years to understand how to organize this work. And your moneybag client will not help you with advice. He, like you, did not work on large-scale projects on the Internet. And just as you will expect a miracle from employees, the moneybags will also expect a miracle from you.
Well, something like this...

Answer 2

- admin
- product manager
The price tag is strange, will students do it?

Answer 3

I would spend 20-30 lyams and a year or two of work.

Answer 4

Dear Riddick!
Here I see phantasmogorical sums.
The development of such a site can cost $200. The theme is very hackneyed, a lot of ready-made scripts are for sale, deploy and enjoy. And then the business starts. Booking is valuable not so much for the website as for the quantity and quality of contracts (direct!) with hotels.
Of course, why not put some money into the business plan, but if you have a real USP, you can start with very little.

Answer 5

Find a company and give them a project for a percentage))