How does this formula equal $0.00 but not " $ - " ?

OK, so to not bore you with too much detail, I have a workbook with simple calculations that track employee spending and payments....basically money in/out. Example below should equal zero and result in a " $ - " but instead it oddly shows "$0.00". This is happening in multiple cells while others "balance" and show correctly. I dug into it after realizing that certain mathematical calculations within could yield a fraction, but since it's just adding and subtracting with 2 decimals, there shouldn't be.

A simple (yet extremely long) formula in one particular cell (formatted as Accounting) is this:

=39+51.71+19.99+19.99+19.51-19.99-19.99+150.81-8.79+43.12+16.87+28.5+10.51+106.83+10.55+15.9-484.52+59.81+239.99+307+17+65.38+16.01+3.37+5.85+128.64+28.16+5.85+7.25+5.9+27.27+57.6+34.15+38+17.5+17.4+20.31+10.37+11.16+9+256.75+80.27+94.37+22.88+23.16-1082.13+75+123.15+63.58+38.02+46.21-5.43+23.19-3.64+75.08+31.95+19.99+19.99-600+23.92+9+36.96+8.97+3.66+151.6+153.77-23.93-203.99+25.96+110.97-468.28+159.25+17.06+10.68-42.41+14.98+45.96+35.33+75+23.05-468.28+156.44+4+4.25+6.06-49.63+18.5+18.5+59.85+47.43+19.99+19.99+39-439.97+50+62.49+61.68-213.17+19.99+19.99-20.58-19.4+387+8.68+3.25-398.93


Which yields $0.00, but actually is this when expanded to 24 decimals:

$0.000000000000568434188608

How is this possible?

This hasn't always been an issue, but all of a sudden it seems to be...but again, not for all cells.

Here's an example of a much shorter one that works out fine:

=1326.75+207.69+37.5+21.74+5.75+49.5+43.01+24+25.53+32.99+54.34+213.75-25.08-2017.47

It yields the "$ - " instead of $0.00.

Anyone wanna take a crack at this?

It's called floating point error.

Long story short, use the ROUND function to round to the nearest hundredth.

i.e. use something like this:

=ROUND(formula,2)

It is simply due to way computers handle numbers so the best you can do is ROUND to say 2 decimal places.

See here:

https://www.microsoft.com/en-us/micr...wrong-answers/