With custom formulas, your churn rate can be variable across time. To do this in Finmark, you can use utilize a custom variable in the fX Variable Section of Finmark.
For this example, we will create a changing churn rate over time.
Step 1: Go the Fx Variables Section of Finmark.
Step 2: Click +Add Custom Variable
Step 3: Enter the name of the custom variable and set the function.
For this example, we've named the custom variable "Product A Churn" and set the variable to the % Function.
Step 4: Enter the changing churn rate.
For our Product A Churn we will start with a churn rate of 10%, then 6 months later we are forecasting our churn to decrease to 8%.
Step 5: Go back to the Revenue Section and apply the custom variable to the product churn.
Start by adding a new product by entering the name, price, and frequency. Then, for churn, we will enter the custom variable that we've created in Steps 3-4. As shown below:
Now, any other changes you want to make to churn for your forecast can be made directly in the custom variables screen.