calculate Weighted Average YTM (Weighted average cost of debt)

Bond	Bond Issue	Total amount $(mil)	Yield To Maturity %
1	Autozone 3.7%	500.0	2.79				Weighted average (YTM)
2	Autozone 4%	500.0	2.27
3	Autozone 3.125%	500.0	2.79
4	Autozone 1.3%	400.0	0.91
5	Autozone 3.25%	400.0	3.37
6	Autozone 3.125%	400.0	3.06
7	Autozone 2.875%	300.0	2.72
8	Autozone 1.625%	250.0	1.58
9	Autozone 7.125%	250.0	2.14
10	Autozone 0.17%	250.0	2.52
11	Autozone 6.95%	200.0	1.15