market-related value?

Hi, can anyone explain what “market-related value” is exactly in pension accounting? if actual return = Fair Value of the plan assets at the beginning of the period x actual return on asset % expected return = market related value at the beginning of the period x expected return on assets, how is this market-related value found and is it something we can calculate? how does this differ from the Fair value? thanks!

oh, nevermind, see it now…going blind