mrmist opened the ticket and wrote:

Trying to understand the formula for calculating income for transported goods, I found what I think is a tiny error in the calculation. For some of the cargo types, the transition between medium/normal and "slow transports"(t > days2) reveals tiny jump, which will result in an INCREASE in the income. This can be seen in the "sshot_orig" file. By using basic maths, I made a new algorithm. The result can be seen in the file "sshot_fixed". This bugfix will have some implications on gameplay, since the income descends a bit quicker, however it will make it easier to predict the income. I also attach a "svn diff" on how to fix this in the source code. It's based on the SVN version of OpenTTD, revision 14274.

Attachments

• sshot_orig.png (72.87 KiB)
• sshot_fixed.png (71.24 KiB)
• sshot_comparison.png (73.63 KiB)
• sshot_comp_close.png (36.78 KiB)
• svndiff.out (0.49 KiB)

Reported version: trunk
Operating system: All

This issue was imported from FlySpray: https://bugs.openttd.org/task/2278