You have a website for business and it is good looking in Desktop computer. But you are losing the potential clients who are using mobile devices for internet usage. The only solution to solve this issue is Mobile Responsiveness.If you ignore responsive web design for your business, you are at risk of going out of business in 2014.
If your website is dynamic and having many web pages, it is better to redesign the website with latest technologies, which features Responsive as a main factor. The price to develop the responsive website is depending upon the client requirement.