Separate the medical limit from the earnings calculation
A doctor’s restriction may explain why you could not lift, drive or complete a shift. Payroll records may show the financial effect. Neither document necessarily supplies the other half of the picture. Put the restriction dates beside the actual work schedule and pay records.
If your hours already varied, preserve records from before the injury as well as afterward. Do not present your busiest week as the automatic baseline or treat every later business loss as caused by the accident.
The stronger explanation is specific and verifiable, not the largest number that can be assembled.

