Year 1: the machine was sold outright, so no fee is ever billed. The service book bears $6,210 of serving with no fee against it. R13 prints −100% as an identity of zero revenue; it is not a placement, and nothing is drawn on the ruler.
There is no service line, because the machine was sold outright, so no fee is ever billed. The cost of serving is $6,210 a year and nobody bills for it. The first defined verdict here is $499 a month read in year 2: −609.9%, negative side, below every resolved row, under Serve Robotics.
At 57 hours and $499 a month, a flat fee gives −609.9% and a fee indexed to hours actually delivered gives −6,376.5%. Under a flat fee, working the machine less improves the margin, because cost falls with hours and revenue does not.
On the same instrument, 57 observed hours give −609.9% and 520 assumed hours give −688.7%. One is arithmetic on a published deployment, the other a page in an investor deck; the study never averages them and neither does this room.
With the wear event at the contestable pole ($2,100, independent repair) the margin is −604.4%; at the captive pole ($8,000, OEM sole source) it is −614.0%, a lift of 9.63 points, more than the smallest step between two resolved rows on the bench. Negotiating parts, diagnostics, firmware and calibration access before the part is locked in is the call this record prices most clearly (C-52, C-99).