• In Transit is the sum of payouts with status pending in Stripe - money Stripe has already deducted from your balance and sent towards your bank but that has not arrived yet. Stripe has already removed it from your balance, so it is not added into Total.
• Estimated = available balance + pending balance. Available is money that could be paid out now; pending is money from recent charges that has not finished settling. Together they are what your next payouts will be made of.
• Total = available + pending as well (matching how Stripe's own dashboard totals your balance). In practice Estimated and Total are usually the same number; the difference is only in how the cards are labelled and linked.

Connect Reserves are escrowed by Stripe and are listed separately, not included in Total.