The explorer seems to show incorrect data

Hi,

to keep it short, I've sent a test transaction from one of my accounts to another one.

Transaction link, basically I've sent 0,001 BTC from this address to this address.

After everything was settled, the receiver had 0,001BTC, and the sender had 0.0185BTC.

Why explorer shows the wrong amount for the sender?

It says 0.0135 BTC instead of 0.0185 BTC.

I can see that in the transaction, there're 2 receivers, one is my address, which received 0.001 BTC, and the other one did receive 0.00506 BTC, so basically the explorer shows as if the sender sent both those amounts, not only 0,001 BTC.

Thank you!

p.s
Sorry for posting here, it's not related to ETH, but BTC.
I initially posted on r/CryptoCurrency, but my post was removed from there.