Dear Sam

For the (Customer Retention And New Customers Calculations) showcases how can we calculate the customer retention rate as the following:

Customer Retention Rate = ((E-N)/S)*100

Where:

Number of the customer at the end of a period (E)

Number of new customers acquired during that period (N)

Number of customers at the start of that period (S)

Could you please share with us how can we model it? and If Possible how to calculate the Customer life time value (LTV)?