Allocation of costs wrt Agilent Keysight split

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Agilent has a handy FAQ here with a l We advise each Agilent Stockholder to discuss the tax consequences of the Distribution, including the allocation of such stockholder?s tax basis in his or her Agilent common stock, with an independent tax advisor. An Agilent Stockholder can allocate the aggregate tax basis in his or her shares of Agilent common stock obtained prior to the Distribution between the Agilent common stock and the Keysight common stock (including any fractional shares of Keysight for which the Agilent Stockholder received cash in lieu thereof) in proportion to their respective fair market values. One possible approach to determining the fair market value of the Agilent common stock and the Keysight common stock is to utilize the New York Stock Exchange (?NYSE?) adjusted closing price on the date of the first trading day following the Distribution for Agilent common stock (which is exclusive of the value attributable to the Keysight dividend), which was $40.84, and the NYSE closing price on the first trading day following the Distribution for Keysight common stock which was $31.15 per share. Based on such values, 72.39% of a Agilent Stockholder?s tax basis in his or her shares of Agilent common stock acquired prior to the Distribution would be allocated to such stockholder?s shares of Agilent common stock and 27.61% would be allocated to such stockholder?s shares of Keysight (including any fractional share of Keysight for which the Agilent Stockholder received cash in lieu thereof).