I suppose that's like asking how long is a piece of string! Each website is different, and has different copy requirements. For most small businesses, a home page that engages the browser right off the bat is crucial to keeping people interested and converting them into leads or buyers. In my experience, most small business websites comprise:

1. A home page
2. An about us or company mission statement
3. Services or product page, outlining most, if not all of their offerings
4. Contact us/inquiry page.

I can only speak for myself, but my process involves the business owner as much as possible, taking their goals and their tone into consideration. Some solo business websites need to match the personality of the proprietor, so this is also something I take quite seriously. I usually write a test page with three variations on tone and style, so it matches the tenor of the business and what audiences will respond to best.

I also bristle at the word "cost" to describe copywriting. It's not a cost, like rent is a cost. It's an investment. My copywriting isn't something a business has to buy, like a cafe needs tables or a retailer needs cash registers. It's a performing asset. Once it's up on your website, it attracts visitors through SEO, convinces them your product or service is worth buying, and generates those sales - as long as the copy is there, it can make you money. It communicates value.

As for the price of this investment, I usually package up my website writing to cater to these small business needs. I also include rewrites and revisions for free, as a guarantee. My packages range from about 600-1750, with more value adds such as longer word counts, content strategies, and blog posts included along with additional pages. You can find out more at my website.

The cost of hiring a copywriter for a new website can vary depending on several factors, such as the writer's experience, expertise, location, project complexity, and the scope of work involved. Copywriters may charge per word, per hour, or per project. Rates can range from $50 to $200 or more per hour, or $0.10 to $2.00 or more per word. It's important to discuss the specific requirements and negotiate the pricing with the copywriter to reach an agreement that suits both parties.

Costs vary a lot because not all copywriters are the same.

It's worth making sure the copywriter you're talking to is great at the kind of work you need doing.

Some might be great for writing websites, but not so good for email marketing.

Others might be great at emails, but not so good for longer sales pages.

And since everyone's budget is different, you should check out the results a copywriter has achieved for their clients and what their clients have said about working with them.

Typically you'll find those who have more experience and better results charge higher fees. So search carefully because you may find a great writer for your website without paying the highest price.

The quote will depend:
- how much info the business has to supply the copywriter, or whether lots of research is required. All copywriters should be some level of research on the industry, competitors and getting to know the ideal client. 
- how many pages e.g. home, about, services, services pages, etc...
- the complexity of the content and website.

When selecting a copywriter:
- look at their experience, if they have a niche
- their style
- that they write benefit-driven content with the ideal client at the centre
- listen and get to know your business, and ask you lots of questions.

Good luck with your search