COD formula

	A	B	C	D	E	F	G
1	Valuation	Sale price	Sale ratio	Absolute deviation	Median ratio	Average Absolute Deviation	COD
2	90,000	100,000	0.90	0.14	1.04	0.1036	9.94
3	105,000	100,000	1.05	0.01
4	80,000	90,000	0.89	0.15
5	95,000	90,000	1.06	0.01
6	99,000	90,000	1.10	0.06
7	88,000	85,000	1.04	0.01
8	75,000	85,000	0.88	0.16
9	120,000	110,000	1.09	0.05
10	90,000	110,000	0.82	0.22
11	130,000	120,000	1.08	0.04
12	140,000	120,000	1.17	0.12
13	120,000	140,000	0.86	0.19
14	110,000	140,000	0.79	0.26
15	150,000	140,000	1.07	0.03
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