It’s not a simple calculation when people in Japan are still debating what the final cost of the Fukushima disaster will eventually add up to.
To do a simple calculation, you need to know the real costs of things, and right now those are unbounded.
“Think tank puts cost to address nuke disaster up to 81 trillion yen”
http://www.asahi.com/ajw/articles/AJ201903100044.html
