Hmm... your code doesn't display anything.
Your use of the round founction will round it to 1 decimal place. if you would like to round it to 2, use 2 instead of 1 as your second parameter.
If you mean that you want to store the unrounded value in the database, but display the rounded value, then leave the rounding until you display the value (code not shown in your example).
If this doesn't make sense to you, please elaborate your question 🙂