Solution: Food Delivery Revenue Analysis

using FoodDelivery;
var dailyOrders = new List<Order>
{
    new Order { RestaurantName = "Burger Joint", Item = "Cheeseburger", OrderTotal = 12.50m },
    new Order { RestaurantName = "Pizza Palace", Item = "Pepperoni Pizza", OrderTotal = 22.00m },
    new Order { RestaurantName = "Burger Joint", Item = "Fries and Shake", OrderTotal = 8.75m },
    new Order { RestaurantName = "Sushi Central", Item = "Spicy Tuna Roll", OrderTotal = 15.00m },
    new Order { RestaurantName = "Pizza Palace", Item = "Garlic Bread", OrderTotal = 5.50m },
    new Order { RestaurantName = "Sushi Central", Item = "Sashimi Platter", OrderTotal = 35.00m }
};
var revenueReport = dailyOrders
    .GroupBy(o => o.RestaurantName)
    .Select(group => new 
    { 
        Name = group.Key, 
        TotalRevenue = group.Sum(o => o.OrderTotal) 
    });
Console.WriteLine("Daily Revenue Report:");
foreach (var report in revenueReport)
{
    Console.WriteLine($" - {report.Name}: ${report.TotalRevenue}");
}