https://www.coursehero.com/u/file/66568391/343682-group-assignment-newpdf/#question

Hi, you can find the full question on the above link. I need to find the answer for section 2 A only, there is a missing data for section 2 A, the cost of equity is 15% and the beginning book value for the year 2020 can be find on the past data which is in section 1 in the year of 2019. I still can't find the beginning book value for the year 2020. Please help me