How much bitcoin is being sent to someone else in this transaction?

How much bitcoin is being sent to someone else in this transaction?

From this link which is a bitcoin testnet transaction.

How can we be sure that this transaction spent a certain amount of satoshis to an address from another wallet? In this case the transaction is spending 2000000 t-satoshis to mzTH5MV8AVuzu6PRL5NArsv6qNYro1P8Qm address.

UPDATE

It seems "blockcypher" system is doing this accurately for this transaction as well. So there must be a way to do it. How does this work?

Blockcypher displays that Estimated Value Sent : 0.01 t-BTC

https://ift.tt/2RhvfGp

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