For a given product, the average demand per selling period is $220$ units with a std$.$ deviation of $110$ units. The optimal newsvendor quantity is $440.$ Which of the following statements will be true?

The cost of overstocking $($per unit$)$ is greater than the cost of understocking $($per unit$).$

The optimal newsvendor quantity would be lower if the std$.$ deviation of demand was smaller.

Demand for the product is systematically underestimated.

If more than $440$ units were ordered, total costs could be reduced.

The estimates for the costs of over$-$ and understocking are inaccurate.