Board Thread:Questions and Answers/@comment-124.6.181.180-20160304102441/@comment-26518423-20160306222918

Which loco was it? TheRealPella gave you the link on how multipliers work.

Roughly, it's the number of passengers/mail in the car, * car bonus, * # cars loco can pull, * 100% for electric (twice as much as a steam engine) or 40% for diesel, * set bonus for a complete set. A non-set may collect more coins, if it cars have a significantly larger cargo and/or the multiplier of the cars is higher.

Then you need to figure in flags. With the proper flags, your payout can be 50% bigger. One of mine went from $20M to $30M, due to bonus flags.

To convert to coins, see how much a current train collects. If you pull 20 cars with the current loco, you could expect a 60 loco to collect about 3 times as much.