Change insertion sort to descending instead of ascending?

[stormbot]

I am using an insertion sort on an array of objects. I have it working right now, but it is in ascending order and I want descending. How can I fix this?

void insertion_sort(Invoice invoices[], const int NUM_ITEMS) 
{
	int j;
	Invoice temp;

	for (int i = 0; i < NUM_ITEMS; i++) 
	{
		j = i;

		while (j > 0 && invoices[j].getPrice() < invoices[j - 1].getPrice()) 
		{
			temp = invoices[j];
			invoices[j] = invoices[j - 1];
			invoices[j - 1] = temp;
			j--;
		}
	}
	cout << endl;


	for (int i = 0; i < NUM_ITEMS; i++)
	{
		cout << invoices[i].getNum();
		cout << setw(11) << "\t" << invoices[i].getDes();
		cout << setw(11) << "\t" << invoices[i].getQuan();
		cout << setprecision(2) << fixed << setw(11) << "\t$" << invoices[i].getPrice() << endl;
	}
}

[tpb]

I think you just need to reverse the test in the while loop

while (j > 0 && invoices[j].getPrice() > invoices[j - 1].getPrice())