Owner A receives $10,000 cash and becomes $190,000 richer on paper ($200,000 X 95% of shares).
Paper Valuation is the value of privately held shares that is not directly tradeable at an exchange.
The opposite of paper value is exchangeable value, and is the value that is directly monetizable as long as there is a willing buyer and a willing seller.
One problem with Paper Valuation is that it is not that easy to monetize in a short time period.
This valuation concept is a cornerstone in the stock exchange world.