Zend certified PHP/Magento developer

Why does Excel use 3 decimal places for currency when I have the cell set to 2 decimal places

For my example, I have a base price of $23. The Standard price is 20% increase of that. Late price is 20% increase from standard pricing.

My problem is I am getting 3 decimal places for some of the prices.

In Cell E2, my price is correct at $34.78 but I have another cell to get this data and add text but this cell is 3 decimal places, so it reads $34.776. I need this cell to only show 2 decimal places.

excel table

Link to file: https://sourceoneevents-my.sharepoint.com/:x:/p/andrew/EQso6uh74xBKjwzRFmFQqaEBaCuvI8AHrBCBZn1jhz2Few?e=N19BJ6