Seems an odd question. Since I’m not sure what you’re getting at, my answer might or might not be of value.
The only thing I know offhand about the breakdown is 60% of the total lifetime cost of electricity is in construction costs, a number that is disgustingly through the roof and why using nuclear power for the whole world is unfeasible. It’s that bad.
The rest is “day to day costs” which are far lower with nuclear than other forms of energy. Which would be great if it didn’t cost so much to build a nuclear plant.