Compare like with like
Use the same start and finish points when timing both runs. Decide whether you are measuring driving time alone or the full return-and-rebuild loop, then use that choice for both.
Count an expense once
For a repeat-run estimate, count only expenses that you expect to repeat on the same basis. If you include a one-time purchase to examine its first-run effect, leave the goal empty: otherwise the estimate repeats that cost inside every future run’s net result.
Understand the goal estimate
Enter additional net Cash to earn, not your target account balance. Whole runs to goal rounds up to complete attempts and assumes each repeats the same income, counted spending and duration. It is an estimate, not a promised payout.
Use the demo to check the arithmetic
Demo values only: a run earning 600 Cash and spending 150 over 5 minutes nets 450, or 90 Cash per minute. An additional 1,800 Cash takes 4 comparable complete runs at that result, or 20 minutes. Replace all demo values with your own measurements.