why this code fails 4th test case on hovercraft code coach?

Question

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Sololearn
{
class Program
{
static void Main(string[] args)
{
long hovercraft = Convert.ToInt64(Console.ReadLine());
long cost = 2000000;
long allcost = cost * hovercraft;
long sell = 3000000;
long allsold = sell * hovercraft;
long all = (allsold - allcost) - 1000000;
if (all >= 7000000) {
Console.WriteLine("Profit");
} else if (all < 0) {
Console.WriteLine("Loss");
} else {
Console.WriteLine("Broke Even");
}
}
}
}

Answer 1

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Sololearn
{
class Program
{
static void Main(string[] args)
{
long hovercraft = Convert.ToInt64(Console.ReadLine());
long cost = 2000000;
long allcost = cost * 10;
long sell = 3000000;
long allsold = sell * hovercraft;
long all = (allsold - allcost) - 1000000;
if (all >0) {
Console.WriteLine("Profit");
} else if (all < 0) {
Console.WriteLine("Loss");
} else {
Console.WriteLine("Broke Even");
}
}
}
}

Answer 2

int makesInMonth=10;
int insurance=1000000;
int selling=3000000;
int build=2000000;
int a =Convert.ToInt32(Console.ReadLine());
if(a*selling>makesInMonth*build+insurance){
Console.WriteLine("Profit");
}else if(a*selling==makesInMonth*build+insurance){
Console.WriteLine("Broke Even");
}else{
Console.WriteLine("Loss");
}

Answer 3

yeah very bad naming i know

Answer 4

broke even is not only zero. it's between zero and 6 million~ i think. i done something now code fails 5th case