I'm trying to find a good word that properly points out the difference between any nouns original state and its current state, assuming the original and current will always be the only two states of the noun.
For example, if I want to compare the original condition of a phone to the current condition, what word would be used to describe the inquiry itself, explicitly dealing with the original phone state and the current phone state?
I would imagine "history" would be one answer, but to me, "history" implies several potential states (original, at this date, at this other date, currently, etc.), whereas in my case I will only ever have exactly two states, no less and no more (since a new phone will be in its original and its current state).
Another could be "comparison," but that again sounds to me like it could be a comparison of any two states, not explicitly the original state and the current state.
Does such a word exist?