public void CalcProfitPercent_SetPercentProfitAppropriately(int modelNumber, string expected)
{
ItemModel fakeModel = TestHelperMethods.DefaultItemModelFactory(modelNumber);
fakeModel.FindProfitInCoins();
fakeModel.CalcProfitPercent();
string actual = fakeModel.ProfitPercent;
Assert.Equal(expected, actual);
}