Retooling Cost

[Adseria (OP)]

According to the wiki, the cost for retooling a shipyard for a new class is half the cost of the class, plus a quarter for each slipway.

I just started retooling for a class that costs 1225.6 BP. The shipyard in question has 3 slipways, so based on the calculation from the wiki, the cost should be 1532 BP, right?

Instead, it only costs 332.5 BP. Is it because I'm retooling for a ship that's similar to the design it was already tooled for (it's just the same ship with updated guns)?

[Jorgen_CAB]

Yes... retooling cost is based on the difference on the two classes of ships you had before. This is a reason why you need to plan carefully how and what type of ships you design unless you want to spend both time and cost unnecessarily.