Change dollar value sent to EBS from Magento

Question

Hi all!

I am currently working on a Magento project. At the time of payment, when user redirects to EBS, the payment amount on EBS is formatted like "xx.0000". What I want is for the amount to be formatted as "xx.00".

How can I do this? In which file do I have to make changes to accomplish this task? Or is there any other method?

Here is the view which you can see the issue:

Thanks for any suggestion or help.