The presentation with all the numbers: https://www.sirgog.com/wp-content/uploads/2022/03/black-sun-crest.pdf
The working: (PLEASE NOTE: no attempt has been made to make this understandable, gibberish warning, even if it does make sense to me) https://www.sirgog.com/wp-content/uploads/2022/03/Black-Sun-Crest.xlsx