Gross IRR and NET IRR

Hi everyone First time speaking on the forum. I am a retaker from last year who lives in Barbados. Just preparing for this exam yeat again. Can some one give me some assistance on how the gross and net IRR is calculated when evaluating the performance of the PE firm, the actual caluation of the IRR is fine but I cannot work out how to determine the cashflows used in the IRR calculation. I am not understanding the example of the calculation in CFAI, Book 5 , top of page 77. Thx in advance

Gross IRR is calcuated net of fees Net IRR is net of mgmt fees, carried interest and other comp to the Gp