Bar

using System;

namespace CSLightFirst
{
    class Program
    {
        static void Main()
        {
            DrawBar(20, 100, 0, ConsoleColor.DarkCyan);
            DrawBar(10, 50, 1, ConsoleColor.Red, '#');
            DrawBar(8, 40, 2, ConsoleColor.Blue);
        }

        private static void DrawBar(int value, int percent, int position, ConsoleColor color, char symbol = ' ')
        {
            ConsoleColor defaultColor = Console.BackgroundColor;
            Console.SetCursorPosition(0, position);

            int segmentCount = Convert.ToInt32(value * (percent / 100f));
            Console.Write('[');
            Console.BackgroundColor = color;
            for (int i = 0; i < value; i++)
            {
                if (segmentCount > 0)
                {
                    Console.Write(symbol);
                    segmentCount--;
                }
                else
                {
                    Console.BackgroundColor = defaultColor;
                    Console.Write(' ');
                }
            }

            Console.BackgroundColor = defaultColor;
            Console.Write(']');
        }
    }
}