Comment 9 for bug 1781274

Thanks, All.

I have pushed an alternate fix:

https://git.evergreen-ils.org/?p=working/Evergreen.git;a=shortlog;h=refs/heads/user/berick/lp1781274-webstaff-billpay-rounding

This approach resolves the rounding issue with the standard floating point / money math way of multiplying / dividing by 100, consistent with other math in the bills.js file (and elsewhere).