Get That Discount C#

Question

Task looks easy I think I am missiing something .Can you help me ?
MY CODE :
using System;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.InteropServices;
using System.Text;
using System.Threading.Tasks;

namespace SoloLearn
{
class Program
{
static void Main(string[] args)
{

double totalPrice = Convert.ToDouble(Console.ReadLine());

//call the method
Discount();

}
//complete the method declaration
static double Discount(double totalPrice)
{
//complete the method body
if (totalPrice>=100000) {

return totalPrice*0.8;
}
else {
return totalPrice;
}

}
}
}
ERROR:
usercode/file0.cs(18,13): error CS7036: There is no argument given that corresponds to the required formal parameter 'totalPrice' of 'Program.Discount(double)'

Answer 1

Pass variable <totalPrice> as argument for Discount() method to make it work. And print the value returned by Discount() method.

// call the method
Console.WriteLine( Discount( totalPrice ) );

Answer 2

It worked thanks ! Ipang