Why does my code output incorrectly for a specific input? (C#)

Question

My code will be below. When the input is 7, the code outputs "Profit", when "Broke Even" is expected, but according to my calculations, profit should be correct?

int buildPrice = 2000000;
int sellPrice = 3000000;
int insurance = 1000000;
int expenses = Convert.ToInt32((buildPrice * 10) + insurance);
int sales = Convert.ToInt32(Console.ReadLine());
int gross = Convert.ToInt32(sellPrice * sales + insurance);

/*Console.WriteLine(gross);
Console.WriteLine(expenses);*/

if (gross > expenses){
Console.WriteLine("Profit");
}
else if (gross < expenses){
Console.WriteLine("Loss");
}
else{
Console.WriteLine("Broke Even");
}

Answer 1

It's not necessary to add insurance for gross.

int gross = Convert.ToInt32(sellPrice * sales);