Trading vs arrival costs

Hello forum,
A simple doubt: are trading costs = arrival costs? If not the case what is the difference?

Arrival cost means trading cost specifically when the execution price is compared to the arrival price.

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Thank you for the reply

My pleasure.

So they’re the same thing in terms of equation right? That’s what I have on flashcard at least.

Yes, if it is VWAP cost
= (Price - VWAP price)/VWAP price