Thank Aaron,
There’s not a quick way to do this currently. As you suggest, you can do it manually, so it is not impossible, but there’s not a one-click solution.
I think Cost Price Price Book - calculate selling price based on recipe expected cost is an excellent solution to this. If you can vote for that thread, that would be ideal as it will keep all the votes in one place and help it move up the priority list.
If you don’t think that other thread is quite right, please do let me know 