Accuracy / Rounding issues - Difference between gnucash and broker account

[Pawel Wocjan]

Hi,

I have selected dividend reinvestment for MSFT so I end up having fractional shares with my broker. For instance, in my account I see the following data for Microsoft:

Price: 94.060
Shares: 30.147
Current value: $2,835.62

I'm trying to reproduce all the data for all my individual stocks, mutual funds, ETFs with gnucash. However, gnucash pull the latest MSF price, which is 94.060, has the same number of shares, but reports a different total value

$2,835.63

meaning there is a difference of 1 cent. It seems that the broker only keeps the first two fractional places and chops off the remaining ones. Gnucash rounds up (in this case) the second fractional place. 

Are there some general guidelines how to choose accuracy for fractional shares/price etc? Has anybody experience such minor discrepancies between his/her broker account and gnucash?

Thank you for your help,
Pawel