Schweser - Private Company Valuation (Equity Investments)

On Page 190 (Schweser)

in Q20, when calculating P/CFO,

we are asked to adjust this CFO by adding back the non-recurring expense of 139,870,000.

why is this amount added back “after-tax”?

It confuses me because when we are calculating FCFF or FCFE, we would be asked to add back

noncash items (i.e. Depreciation) “before-tax”.

Probably because this is P/_ CFO _: cash is always after taxes.