Reconciling 2 Data Sets

Hello,

I hope all is well. I am trying to reconcile 2 different data sets. One of the problems I am running to is rounding and conditional formatting.
For example:

Sum of Amount          2nd Amount

$130.00                             $129.99998

Essentially these are the same numbers with rounding

I would like the conditional formatting to read .. if sum of amount is almost the sum of the 2nd amt then place remark, else null. 

I know that's not the correct operator. However this is what I'm trying to get to. Is this possible?

Thank you!