This reminds me of the time I was the sysadmin for an accounting
system and the UK VAT rules
The package we used, was on an Altos 1000 386, used floats but this is
allowed for in the VAT rules and one can round the VAT down to the
nearest penny per invoice line or at the invoice total.
We had an inspection by a green VAT inspector who decided we were up
to something and sent in a heavy gun to grab a snapshot of the data
(UUCP over RS232 for a long while).
We were "making" ?4 ish a month due to invoice line rounding where
most packages do it per invoice total.
We never saw the green noob inspector again!
Hooray for rounding in our favor
Dave Caroline