Does this make sense

I have for example a solution which contains 1 % of aminocyabride (ACB; MW =200)

if i made 1 liter of this solution at 1 % , so that is 10 g of ACB, and its equivalent in mmol/ liter = 50mmol/liter

if i just made 300 ml, with again 1 % ACB, that would be 3 g of ACB,

then its equivalent in mmol/l = still 50 mmol/Liter

( 3g/200=0.015 x 1000= 15 mmol/ 300ml x3.33 =50 mmol/ liter

is this correct?

thankls