(Note: looks like whitepaper needs to be updated, "0.1 LISK of amount sent for a spend transaction" should be "0.1% LISK of amount sent for a spend transaction".
We changed it to a constant 0.1 LISK. There was always the problem to calculate the fee, now it's very easy.

Great job! So if lisk will cost 10 usd in the future, transaction fee will be 1 usd. You guys rock! "Now it's very easy", lawl
I do agree with this. it should be percentage not constant. Constant will disrupt free economy as lisk goes up.