LBO value creation decomposition for IPO exit

How would a value creation decomposition (revenue growth, margin change, multiple change, fees, dilution, management options etc.) work for an IPO exit and sell-down in an LBO?

I fundamentally understand how this works for a traditional sale exit, but a bit lost in how to go about doing this for an IPO exit given the sell-down over multiple years. Would really appreciate any help as I can't seem to find a reliable way to do this after a decent amount of googling and asking around colleagues (nobody seems to know, they just suggest to show an "illustrative" 5-year sale in place of it...) 

Thanks!