Listia's (current) rate for 1 XNK = "$0.09". So 25,000.00 x 0.09 = $2,250. I get that "0.09" rate from their March 16th Blog Update. https://blog.listia.com/category/news-updates/
Most people are still using the debut rate of "0.14" when calculating their listings which Listia used to display at the top of their page, but have since removed. If going by that "0.14", your asking for $3,500.