Measure income, spending and time

Do not enter your whole account balance as Cash earned. Record the balance before and after the interval and every expense you want included. Use the same timing rule for both attempts.

  1. Write down starting Cash and start the timer.
  2. Log the Cash expenses you are counting during that interval.
  3. At the same finish point each time, record ending Cash and elapsed minutes.
  4. If all balance changes are the earnings and expenses you recorded, Cash earned = ending Cash − starting Cash + spending. Net Cash = ending Cash − starting Cash.

Worked example — demonstration only

Start with 1,000 Cash, spend 80 during the measured interval and finish with 1,420. If no other balance changes occurred, enter 500 as Cash earned and 80 as Cash spent. The net gain is 420. Over 6 minutes, that is 70 net Cash per minute. These are invented example values.

Separate income from progress

Distance tells you how far a car travelled. Net Cash tells you what remained after counted spending. Choose the metric that matches the reason for your next upgrade.

Turn a purchase into a target

Price the parts first, set aside a reserve if you want one, then use the budget gap as an additional net Cash goal in the run calculator.

  1. Enter the planned parts and quantities in the budget planner.
  2. Use Extra Cash needed as your savings target.
  3. Enter one measured run to estimate complete comparable attempts.
  4. Repeat your measurement when the car or run conditions change.

Avoid a misleading farming comparison

Record one-time gains and purchases separately from repeatable earnings. Only use a run for a repeat-run goal estimate when its income, counted spending and timing are the basis you expect to repeat. This guide supplies no fixed farming rate.