Here's the clarification you need.
Days rented - the day count starts on the first day a renter "COULD" have moved in. The day count stops on the day the last renter moved out.
Personal use days - The number of days you lived in the house as your primary residence, 2nd home, vacation home or any other type of personal pleasure use *WHILE THE PROPERTY WAS CLASSIFIED AS A RENTAL*. Typically for your situation, that days of personal use will be ZERO. What you used the property for BEFORE it was converted to a rental does not count. What you used the property for AFTER converting it from a rental back to personal use *does* *not* *count*.
Business use percentage will be ONE HUNDRED PERCENT. While the property was classified as a rental, it was used for business ONE HUNDRED PERCENT of that time. What the property was used for "after" you converted it back to personal use *does* *not* *count* for anything.
I think there are notes on those screens that explain this - or at least the notes try to.
