this is bangladesh. don't mention the 78tk/dollar here... it makes me furious.

pc parts cost 97 to 110 tk/dollar here, except for intel processor- 82tk/dollar. there are many reasons behind this...syndicate-price fixing/ taxes/customs/profit/supply-demand etc etc etc.
also to be fair, its not only about Bangladesh, pc parts are
ridiculously expensive in india too. but at least they have uber cheap steam games (off topic).
this is a problem in many developing countries(non EU).
at least now you can buy consoles at very cheap price in BD.