For quality Organic Search Engine Optimizer Cost most Probably 40-5o US$/Hour and Firm which are providing SEO Services providing a Package according to Keywords Competition.
So Keywords Analysis and the Ranking Competitors for that Keywords Checking are very Essential to give Exact Cost.
If the Competition is Low in that point of View only Quality Content and On Page Optimization can able to get first place in Search Result.
The cost of search engine optimization services depend upon different firms and on things like number of keywords, competition, geographical location, business theme and many more... some companies pay monthly charging 100 of dollars with guaranteed ranking on the first page of Google SERP.
Depends upon Different Firms there are People claiming they can do it for $5 and there are other companies charging 100 of dollars . But they guarantee you that you page will be appearing on the first page of Search Engines !
SEO has become quite easy today and Google now rotates search results so it's difficult to be continuously on the first page of Google searches anymore.
I got a great book on Amazon - SEO Organics - it's also on Kindle and is very easy to follow and a quick read. Just refining your website and a few quality links will do wonders in a few days or weeks.
good luck

The SEO firm cost depends on client, firm, and type of work. These 3 factor decides the cost of a SEO firm that what client is ready to pay, what prices rhe firm is ready to accept rthe work and moreover depends on the time what type of the work it is short spanned or its for long time consuming
The cost of search engine optimization services depend on things like number of keywords, competition, geographical location, business theme and many more. Most of the companies charge on monthly basis, some agency take particular amount on the base of number of keywords and service duration.
The price of the service depends on the package you will choose.You need to know,that the different companies offer different packages.It's up to you to decide what you need and how much can you pay for it.There is something else,one package can be cheaper in one company and expensive in another one,that depends on the quality of the service they offer.You can check the link in the resource box and see,which one is the best for you.Good luck.
It depends on the quality and quantity of the keywords. So many seo companies providing seo services they also mention pricing plans on the websites some compnies charge as per keywords and some compnies charge as per domain.
It depends on type of SEO , you want to opt for .ie inhouse seo expert or SEO outsourcing..!!!
it depends on the firm a s well a the client that how much work it want as if client want on-page as well as off page both than the charge 99$/month with guaranteed ranking on the first page of Google SERP.
Could range on avg. between $100 - $1000 per mth depending on your needs.
It depends on your requirement...
http://www.blueoceandigitalagency.com/