A budget in a travel story can help identify spending categories, but its amounts should not be copied without checking them. Services, dates, and currencies may differ. For a northern Argentina trip, a small budget of your own is more useful: combine current quotes with clearly identified allowances for decisions you have not made yet.
Separate booked costs from estimates
Divide the trip into accommodation, transport, meals, activities, and smaller expenses. Within each group, distinguish what is paid, what is reserved with an outstanding balance, and what remains an estimate. Do not count an excursion twice if it is included in a package, or overlook a transfer excluded from an accommodation offer.
Record currency, date checked, and number of people. A room price is not the same as a per-person price; a private group service is not directly comparable with one seat on a shared departure. If you need currency conversion, note the reference used and treat the result as an estimate affected by the payment method and timing.
Compare what each offer includes
Ask for a written explanation of the quote: transfers, admission, meals, luggage, and any relevant extras. A cheaper option may shift part of the expense to another moment. Review change and cancellation conditions before deciding how much remains available for the rest of the trip.
A short table comparing two alternatives makes differences easier to see than a long list of links. Include a column for unanswered questions. For example, if the pickup point is unclear, do not budget for a free transfer. Mark that item as unconfirmed until the provider responds.
Allow room without inventing precision
Allow for plausible changes such as an extra night, an unplanned meal, or alternative transport. The amount depends on your itinerary and what you can absorb, not on a universal percentage. Keep that allowance separate from money already committed to specific payments.
During the trip, update the balance after major payments. You do not need to record every small purchase if that makes the table impossible to maintain. Keep receipts and check that charges match the agreement. A useful budget supports choices between alternatives; it does not need to pretend it knows every future price.