If a form includes the Recurring Payment element you will have the option of providing the donor with a confirmation message containing the details containing the entered details and calculations based on the recurring period, the start and end dates, and amount.
To enable, select the Pledge Confirmation tab of the form builder and select the Enable checkbox.
The screen will refresh and display the following:
Add text to the editor window to help the user understand what information is being displayed and add the required form (merge) tags.
You also have the option of displaying alternative text on the Confirm and Back buttons:
Once this is set up and the form in use and a user completes the form, the selection of the form Confirm button leads to the display of the confirmation page.
Either select the Submit button to complete and submit the form, or select the Back button to display the form where you'll be able to revise the payment amount and recurring payment details.