$1.$How much does the optimal order quantity save $($approximately$)$ compared to an order quantity of $1,500?$

$$2,229$

$$1,500$

$$1,985$

$10\mathrm{.}9\%$

$-$Select$-$abcdItem $1$

$2.$For which of the following order quantities does the optimal quantity save the most?

$500$; $16\mathrm{.}1\%$

$750$; $2\mathrm{.}0\%$

$1,250$; $4\mathrm{.}6\%$

$1,500$; $10\mathrm{.}9\%$

$-$Select$-$abcdItem $2$