public void CheckAddVat()
{
Assert.Equal(120, Exercise001.AddVat(100, 20));
// Assert.Equal(47, Exercise001.AddVat(40, 17.5));
// Assert.Equal(39.367, Exercise001.AddVat(33.5, 17.5));
// Assert.Equal(25, Exercise001.AddVat(25, 0));
}
