Studying this once more after @amaclin’s reply, I understand that you simply might need certainly been asking in regards to the enter quantities reasonably than the output quantities. In that case, you’re right. The enter quantities should not explicitly specified within the transaction as they’re specified by the prior transaction that created the UTXOs. A spending transaction solely must specify which UTXOs it precisely spends, however the details about the output script and quantity are already current in every node’s UTXO set.
For those who have been asking about output quantities, see my authentic reply under:
It relies on the kind of transaction you’re constructing.
If you’re sweeping a pockets, consolidating right into a single output or depositing a number of entire UTXOs to a service, you in all probability don’t care about specifying the quantity of the output. Relatively, it’s implicitly outlined by the inputs and costs.
Nonetheless, in my expertise, most transactions are created to make one or a number of funds. Once you make a fee transaction, you do wish to ship a certain amount to every receiver of the fee. Solely the potential change output quantity would then be decided by what stays from the inputs after deducting the fee quantity and the charges.
