Introduction - If you have any usage issues, please Google them yourself
* S walk farther, lower freight per kilometer. The following criteria:
s d
s <250km no discount
250 ≤ s <500 2
500 ≤ s <1000 5
1000 ≤ s <2000 8
2000 ≤ s <3000 10
s ≥ 3000 15
Let per kilometer per tonne of basic goods freight p (price abbreviation), cargo weight w (weight), a distance of s, discount for the d (discount),
The total freight f (freight acronym) is calculated as: f = p* w* s* (1-d)* /