Lasse from Typeform Support here.
When integrating a Typeforms to a spreadsheet like Google, adding calculations to the tab where the form is integrated often break the integration.
We recommend to always work on the data in another tab in the sheet.
To showcase a way to do this, I have created the video below(6 min) where I use Google Sheets own =ARRAYFORMULA() and =IF() methods.
In the video I also show a way to change data from True/False to a number (1 or 0) using the =IF() method.