Taxes - Reading 22/example 4

I hate taxes. I see in reading 22, an errata was released and the equation is now:

Rpl = [(1 + R’1)…(1+R’2) ( 1 - liquidation tax /final value) ]^1/n - 1

I dont understand. This still does not get me the correct answer for BB4.

What is liquidation tax/final value? Within the errata, it says it is:
(1 - 0.02).
Why does liquidation tax/final value equal 0.02?

It states liquidation tax = (final value - tax basis) * Capital gains rate

Can somebody sub in the numbers from the example and show how it’s expanded. I don’t understand with all the steps skipped.

Thank you

Is there more details?