The cost of pay-per-click will greatly depend on your industry and any time a potential customer clicks on your PPC ad while searching they're send to your website and arrival at what we call a landing page this page should be relevant to what your visitors are interested in and should help convert visitors into a sale.
Some of the many great advantages of pay-per-click when done correctly are able to generate new customers almost immediately. You have complete control over the days and times your ads are displayed and it's possible to track the effectiveness of your ads in details.
PPC also costs a fraction of what you pay with other forms a paid advertising and since your marketing budget is delivered to a highly targeted group your return on investment is much higher than with other forms of paid advertising.
The goal of PPC campaign is to attract better quality visitors to your website who are more likely to buy and through the use of key phrases PPC campaigns limit the visibility of your ads to only those customers in your target market who are searching for your products or services.