How to make reductions of large numbers in unity?

Question

C++ / C#

I'm making a game and I need 1000 to be displayed as 1k millions 1M etc. I've searched all over the place and still don't understand how to do it.

Answer 1

As an example, append the output format

public class DoubleConverter : IValueConverter
    {
        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
        {
            if (value == null)
                return "";

            var doubleValue = (double)value;
            return $"{doubleValue}";
        }

        public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
        {
            var strValue = value as string;
            if (string.IsNullOrEmpty(strValue))
                return 0;

            if (double.TryParse(strValue, out var resultDecimal))
            {
                return resultDecimal;
            }
            return 0;
        }
    }