I set up a website for online applying of trademarks
In step 2 of the multi-page-form people can choose from up tp 45 classes. Each class costs 100 € in general, while up to three classes always costs 300,00 € (so 1, 2 or 3 classes = 300,00 €, while 5 classes would for example be 500,00 €).
What I want to do is add a value of 100,00 € to each of the 45 classes and show the final sum in step 4 of the form, depending on how many classes the user checked in step 2. What I don't want is the single-value to be seen on the pre-submission page, so it should be hidden.
I was thinking of a hidden calculation field plus conditional logic depending if the sum is above or less then 300,00 €. Unfortunately it didn't work :(
Any suggestions on how to get there?