It means 185 miles on the Sentra @ $11.10 and 48 miles on the bike @ $1.44 for the last 10 days. 3 cents a mile on the bike and 6 on the Sentra. Overall 5.6 cents a mile and 41.25 mpg.
Not bad for $950 purchase price for both vehicles.
If I rode the scooter at 170 MPG it would be 1.29 cents per mile, barely more than I paid in 1968 in a bug eye sprite.
regards
mech