a = gas/tolls (Toledo -> St. Paul) = 100
b = hotel = 438
c = gas/tolls (St. Paul -> Cburg) = 150
d = gas/tolls (Cburg -> Cleveland) = 20


Dots:

a/2 + b/3 + c/3 - b
50 + 146 + 50 - 438
-192

Bramz:

a/2 + b/3 + c/3 + d/2 - (a + c + d)
50 + 146 + 50 + 10 - (100 + 150 + 20)
-14

Truman:

b/3 + c/3 + d/2 - 0
146 + 50 + 10 - 0
206