How do you calculate it? I have a wine that stopped at about 1.010, I liked it this way and stabilized. But I need to know RS (%) to enter a competition. Any body can help?
Like Manley says, the Brix scale is grams of sugar per 100 grams of liquid and is, therefore, the percent of sugar in the liquid. See this table for a quick conversion: http://www.winning-homebrew.com/specific-gravity-to-brix.html Looks like your wine is about 2.5% sugar.