public static void Main()
double startingNumber = 2.0;
double avarageIncreasePercentage = (double)30/100;
Console.WriteLine($"1 | {startingNumber}");
for(var count = 2; count <= numberOfDay; count++)
startingNumber = (startingNumber * avarageIncreasePercentage) + startingNumber;
Console.WriteLine($"{count} | {startingNumber}");