Average Membership Tenure is the average length of time a member stays with the organization. This can be useful in projecting expected membership tenure for new members. 

CALCULATION: 1 ÷ Lapse Rate = AMT

Lapse Rate is calculated as shown in Lapse Rate (Churn).

Example: 1 ÷ .15 = 6.66

Average Membership Tenure in Years is 6.66 years.