December 17th 2007
Both formats' movies have been selling at very close to the same rates in the last few weeks, with Bluray just holding onto the lead, but it's averaged about 60:40 for the last 2 or 3 months, with some weeks as close as 51:49. This week is predicted to be another close week, with the report due on Friday, December 21st.
The Year-to-date 3 months ago was 64:36. 2 months ago 64:36. Current Nielsen Videoscan is 65:35.
Please explain by what mathematical process you arrived it your conclusion that the ratio has closed to 60:40 in the past 2-3 months.