I am having difficulties at understanding minimum raise. From other answers I understand that minimum raise is equal to last bet. I do not understand if minimum raise changes from a round to the other. I will try to give an example in a No Limit scenario.
Example 1: Preeflop Player A -> small blind 100 Player B -> big blind 200 Player C -> raise 600 At this point is minimum raise 400? After round over, does minimum raise doubles, remains as it is or resets to big blind?