I am not very much into deep theory understanding... Sorry...

Let's say I have 2 accounts with the same broker, both of them MT4 or MT5; one account has a base currency in AUD and the other in GBP. Since the AUD is "cheaper" than GBP, will the spreads for all currencies in the AUD account appear larger (maybe twice larger) than the spreads in the GBP account? More generally, the question is whether the spreads depend on the account base currency or not... Are they calculated using the base currency of the account? Thanks!

Let's say I have 2 accounts with the same broker, both of them MT4 or MT5; one account has a base currency in AUD and the other in GBP. Since the AUD is "cheaper" than GBP, will the spreads for all currencies in the AUD account appear larger (maybe twice larger) than the spreads in the GBP account? More generally, the question is whether the spreads depend on the account base currency or not... Are they calculated using the base currency of the account? Thanks!