Syndication numbers over 5 years

[Timothy Lin]

Reading Vanessa Peters book “the busy professionals guide to passive real estate investing” and in it she has a chart showing initial investment of 100k, 8% preferred return, 20% cash on cash return including sale of property, and 5 year hold.

Each year she shows $8k return (years 1-4) then a $168k return in year 5 including the return of equity. Total exit is $200k (168+4x8). I am unable to see where the 168 comes from. 100k from the initial investment, 8k from annual return, 20k from cash on cash?

Or is it standard for a syndication for the annual returns to be added with the 20% cash on cash applied to the 100k initial investment plus 5 years of 8k returns?