Mul -0,14 Add 12,3
Cargo Units of cargo Blocks distance Actual total pay Days transported Actual pay per unit (Days * Mul + Add) * Distance Error
Passengers 270 13 38 771 9 144 144 0 %
Passengers 90 13 13 118 6 146 149 2 %
Passengers 270 20 50 247 22 186 184 -1 %
Passengers 270 20 53 001 18 196 196 0 %
Passengers 152 26 40 924 14 269 269 0 %
Passengers 47 27 14 169 6 301
309
3 %
Passengers 42 27 12 662 6 301 309 3 %
Passengers 38 27 11 502 6 303 309 2 %
Passengers 99 29 24 559 27 248 247 0 %
Passengers 112 29 28 955 24 259 259 0 %
Passengers 270 29 75 444 19 279 280 0 %
Passengers 270 29 78 969 16 292 292 0 %
Passengers 500 30 164 794 11 330 323 -2 %
Passengers 50 30 16 818 6 336 344 2 %
Text Box: Formula:
(Days * Mul + Add) * Distance

Mul and Add depends on cargotype, inflation and gameyear.

This formula is linear, but the in game formula isn't entirely linear. There's a bend at around 10 days of travel, so this formula doesn't work for shorter times of travel than that.
Passengers
250 34 94 920 8 380 380 0 %
Passengers 177 35 55 228 24 312 313 0 %
Passengers 239 35 78 666 21 329 328 0 %
Passengers 450 35 171 615 10 381 382 0 %
Passengers 141 36 43 409 28 308 302 -2 %
Passengers 90 36 36 328 6 404 413 2 %
Passengers 450 37 183 068 11 407 398 -2 %
Passengers 135 37 55 323 8 410 414 1 %
Passengers 169 37 69 257 8 410 414 1 %
Passengers 21 38 7 911 17 377 377 0 %
Passengers 26 38 10 052 15 387 388 0 %
Passengers 32 38 12 380 15 387 388 0 %
Passengers 32 38 12 380 15 387 388 0 %
Passengers 442 48 233 435 10 528 523 -1 %
Passengers 360 64 239 629 14 666 662 -1 %
Passengers 66 79 39 439 34 598 596 0 %
Passengers 92 79 59 557 29 647 651 1 %
Passengers 237 146 308 477 24 1 302 1 305 0 %
Passengers 199 146 260 088 24 1 307 1 305 0 %
Passengers 205 146 270 114 24 1 318 1 305 -1 %
Passengers 232 146 308 072 23 1 328 1 326 0 %
Passengers 250 146 356 449 19 1 426 1 407 -1 %