Hi,
In this case, I recommend to follow the steps below (I’m assuming you are using the Pro or Developer version of the plugin)
1. Remove the “Bereken” button, and assigns the text “Bereken” to the submit button.
2. Go to the “Form Settings” tab, and tick the option: “Eval dynamically the equations associated to the calculated fields”
3. Select the calculated fields, and tick the option: “Hide Field From Public Page”, the field would be hidden from the public page.
4. Now, in the “Thank You page” attribute of form’s settings, enter the URL of the page where was inserted the form:
https://www.eventshirt.be/test/
5. Finally, in the same “https://www.eventshirt.be/test/” page, paste the following shortcode above the shortcode of form:
[CP_CALCULATED_FIELDS_RESULT]
A different solution will require customize the plugin’s code.
Best regards.
