Include decimal to Invoice Amount for invoice approval

Summary:

We are looking to include the decimal amount (ex. 2000.50) to the invoice amount within the workflow rule conditions.

Content (please ensure you mask any confidential information):

Currently, we have AP workflow set up with conditions looking at invoice amount. If the invoice amount if over $2K then it will route to a user group. However, the rule is not considering invoices that are $2000.20, anything with the decimal amount (the cents). It is only looking as an integer. I have tried using conditions: 'DoubleValye' and 'LongValue', neither of which worked. Any other suggestons?

Version (include the version you are using, if applicable): 24B