Below is some data for a manufacturing firm that produces leather jackets: Complete the chart below, and state the number of leather jackets that should be produced in this business to maximize profits:

Units Produced		Fixed Cost	Variable Cost	Total Cost	Marginal Cost	Marginal Revenue	Total Revenue	Profit	MR-MC
0		$62	-	$62	$0	$0	$0	$62
1		$62	$28	$90	$28	$40	$40	$50	1
2		$62	$48	$110	$______	$40	$80	$30	20
3		$62	$64	$126	$16	$40	$______	$6	24
4		$62	$82	$______	$18	$40	$160	$16	________
5		$62	$104	$166	$22	$40	$_____	$34	18
6		$62	$130	$192	$_______	$40	$240	$48	14
7		$62	$162	$224	$32	$40	$280	$_____	8
8		$62	$______	$264	$40	$40	$320	$56	0
9		$62	$262	$324	$60	$40	$_____	$36	-20
10		$62	$342	$404	$80	$40	$400	$4	-40

At what level of production should this producer operate to maximize profit? Why?