LTV - Medium Blog Post - Google Sheets

	A	B	C	D	E	F
1	cohort	sub_group	vintage_month	num_users	num_retained	2018_06_retention_rate
2	2018-06	blue:female:organic:credit_card	1	250	235	94.00%
3	2018-06	blue:female:organic:credit_card	2	250	225	90.00%
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