derailvalley working calculator tool, to figure out what's you consist weighing, value etc.

[Stikikeys]

I saw there is a calculator tool in the station office but it dose not function. It's incredibly useful especially if you are doing two jobs or more. You will be able to get an idea of your final train mass, final expected income and the final train lenght and mass so you can figure out what to do next. Maybe a piece of paper to write all this down.