Good catch. If the odometer was switched from km to miles between the 2 readings without noticing the change in units, it would produce these readings. Not recording units for the odometer reading paired with the stupid software that took a -29k and turned it into +36k and there they are.
eta: now that the math puzzle is solved, I can take a step back and look at the much bigger issue of the sociopathically indifferent corporate approach to business
