Board Thread:Questions and Answers/@comment-25730832-20150228151030/@comment-749631-20151013235212

Just found that someone found an apparently universal formula that can explain basically all cases. source: http://kancolle.aemedia.org/forum.php?mod=viewthread&tid=2437&extra=page%3D1&page=7&mobile=2

Ignoring any additional multiplers (e.g. GS, Flagship 150%, the etc.), there are two variables that would influence the amount of exp obtained: A that is influenced by the level of kanmusu themselves, and B, that might be influenced by Katori's level or maybe random. Katori would gain A*1800 exp and other kanmusu would gain A*B*1800 exp. Afterward, apply multiplers onto previoud calculation result, then it can perfectly fit all obtained data. With the current obtained info, A is suggested as follow:

It is hard to say what B actually depend on, as generally it seem like remodeled Katori generally give a higher B but it is not universally true and that higher level Katori can give a lower B can lower level katori in some case. According to a few report given in original post, there seems to have a B value between 1.01675 to 1.0335 for those katori tested with level ranging from 13 to 28, and for katori level 35-50 with remodeled they obtained B value from 1.025 to 1.0667