The Net Worth tab adds up the dollar fields across your vault — balances, account values, property values — and subtracts what you owe (mortgages, remaining loan balances). You get the total, an assets-vs-liabilities split, and a breakdown by category.
Entries you’ve given dollar amounts to. It’s only as current as what you’ve typed in — NestVault doesn’t connect to your bank or pull statements, by design. The one live number: Bitcoin holdings are valued at the current BTC price, based on the quantity you’ve recorded.
My Assets and Net Worth answer different questions: My Assets is what exists and where (no dollars, for your family); Net Worth is what it adds up to (for you).