using static System.Console;
using System.Globalization;
public class Program {
public static void Main() {
var numero = 896567M;
var texto = string.Format(CultureInfo.CreateSpecificCulture("pt-BR"), "{0:F1}", numero / 1000);
WriteLine(texto);
}
}
//https://pt.stackoverflow.com/q/56654/101
dXNpbmcgc3RhdGljIFN5c3RlbS5Db25zb2xlOwp1c2luZyBTeXN0ZW0uR2xvYmFsaXphdGlvbjsKCQkJCQkKcHVibGljIGNsYXNzIFByb2dyYW0gewoJcHVibGljIHN0YXRpYyB2b2lkIE1haW4oKSB7CgkJdmFyIG51bWVybyA9IDg5NjU2N007CgkJdmFyIHRleHRvID0gc3RyaW5nLkZvcm1hdChDdWx0dXJlSW5mby5DcmVhdGVTcGVjaWZpY0N1bHR1cmUoInB0LUJSIiksICJ7MDpGMX0iLCBudW1lcm8gLyAxMDAwKTsKCQlXcml0ZUxpbmUodGV4dG8pOwoJfQp9CgovL2h0dHBzOi8vcHQuc3RhY2tvdmVyZmxvdy5jb20vcS81NjY1NC8xMDE=