Talk:Spring 2015 Event/@comment-25784159-20150430152103/@comment-26348726-20150430172233

@219.99.100.62: No, the data shown in kancolle-db includes *all* sorties at that node, no matter whether there was a drop or not. It also records sorties where there was no drop on that node. Therefore, the 'drop rate' of 1.55% is correct (but don't forget kancolle-db also records A and B victories, and includes them in the calculation of drop rate!). Since there is about a 50% chance of getting a ship drop at node K, that means that the real 'appearance rate' for Roma, i.e. the chance that Roma will be the ship the appears *after* a ship drop is confirmed at node K, is 1.55% * 2 = 3.10%, which is basically the same 'appearance rate' as you get for Roma in node O.