Calculate the proportion of unfavorable materials quantity variances. How has the proportion of favorable to unfavorable variances changed over time? What do you infer about the quality of the outsourced product?

$ 1,704	F
$ 1,188	U
$ 1,999	F
$ 1,814	F
$ 1,743	F
$ 1,153	F
$ 1,101	U
$ 1,162	U
$ 208	F
$ 647	U
$ 1,511	F
$ 812	F
$ 1,090	F
$ 545	U
$ 793	F
$ 555	F
$ 1,253	U
$ 1,641	F
$ 1,157	F
$ 1,668	U
$ 933	F
$ 64	F
$ 1,075	U
$ 492	F
$ 497	F
$ 1,058	U
$ 1,502	U
$ 443	U
$ 1,216	F
$ 325	U
$ 1,801	F
$ 1,035	F
$ 653	F
$ 301	U
$ 320	F
$ 1,834	F
$ 610	F
$ 567	U
$ 198	F
$ 1,909	F
$ 756	U
$ 774	F
$ 1,272	U
$ 847	F
$ 626	U
$ 1,921	U
$ 1,229	F
$ 354	U
$ 413	F
$ 59	F
$ 183	F
$ 1,305	F
$ 898	U
$ 1,066	U
$ 627	F
$ 963	F
$ 602	F