c#, Regex

Question

Regex regExpPrice = new Regex("<div class=\"price\">\r\n (.*?)<\\/div>");

Regex regExpPrice = new Regex("<div class=\"price\">\r\n \\d.*(?=\\()<\\/div>");

i am scrapping a web site, and want to remove comma (,) in price.. I tried both.for example 1,300 => 1300(required)

how can i do that using regex..