The fixed and variable costs for three potential manufacturing plant sites for a rattan chair weaver are$$ shown:

$$

Site

Fixed Cost Per Year

Variable Cost per Unit

$1$

$$700$

$$12\mathrm{.}00$

$2$

$$1,200$

$$6\mathrm{.}00$

$3$

$$2,200$

$$5\mathrm{.}00$

Part $2$

$$a$)$ After rounding to the nearest whole$$ number, site $1$ is best below

$$

$0$

$83$

$1000$

units.

Part $3$

After rounding to the nearest whole$$ number, site $2$ is best between

$$

$1000$

$0$

$83$

and

$$

$83$

$0$

$1000$

units.

Part $4$

After rounding to the nearest whole$$ number, site $3$ is best above

$$

$1000$

$0$

$83$

units.

Part $5$

$$b$)$ If the demand is $990$units$,$ then the best location for the potential manufacturing plant is

$$

SITE $1$

SITE $2$

SITE $3$

$.$