Need Help on Retention customer calculations

[Anonymous]

Hello expert,

I am stuck to calculate on retention.

For example I have 100 Customer in Jan21 but total 70 customer purchased in Feb21 inwhich  50 were from jan21 hence retention % will be 50% as similary have to check month on month.

How will it possible to get this. 

sharing some data with summary for reference.

Thanks.

@Tanushree_Kapse @VahidDM @administrator @PBCommunity @amitchandak 

Thanks.

[amitchandak]

@Anonymous , refer if my blog on the same topic can help

Customer Retention Part 1:
https://community.powerbi.com/t5/Community-Blog/Customer-Retention-Part-1-Month-on-Month-Retention/ba-p/1361529
Customer Retention Part 2: Period over Period Retention :https://community.powerbi.com/t5/Community-Blog/Customer-Retention-Part-2-Period-over-Period-Retention/ba-p/1377458