Confirm the final change
Ask the person calculating to distinguish card totals, bonuses, deductions and the final net change. The scorebook accepts that confirmed final number for each team, not a component copied halfway through the calculation.
Read names and signs
Say both team names and whether each change is positive, zero or negative. Then inspect the newest row. A correct sum of an incorrect entry still produces an incorrect record.
Keep a useful note
Use the optional note for the round or a relevant correction. Do not include passwords, private account details or unrelated personal information. A note should help someone who was present understand the entry later.
Export before clearing
The record is local to this browser. Export CSV before Reset or clearing site data. Undo handles the latest round; keep a copy before rebuilding an older mistake.