import java.text.DecimalFormat;

public class Metode {

    public static void main(String[] args) {
        DecimalFormat twoDecimals = new DecimalFormat("0.##");
        int totalWon = 3;
        int totalLost = 10;
        double totalRatio = (double) totalWon / totalLost;
        System.out.println(twoDecimals.format(totalRatio));

        // OUTPUT: 0,3 on windows -- 0.3 on mac

        // 0,3 stores as 0 in mysql, 0.3 stores as 0.3 in mysql
    }

}