I'm submitting this for help collaborating on what should be done, if anything.

Example of the issue

Here, I am summing -40.25, 100, and -34.59 in the database:

Good catch Piotr :)

In certain cases in Ruby 1.8, BigDecimal / Float = Float. So, I just had to convert the other side to a BigDecimal before the division.

Just...

Currently, if you run number_with_precision(9.995, :precision => 2) it returns "9.99". It should return "10.00". You can read a little more information here:

h...

Good idea. I have included new patches with i18n tests!

OK, thanks for clarifying that for me. It makes sense now.

I have squashed the patch into one commit and I attached a patch for master and another for 3-0-stabl...

Andrew, I'll definitely squash the patch into one commit. I realized I had done that after I uploaded it.

I'm not sure what you mean by your other suggestion, t...

Good idea. I have made that change. The negative format is now "-" + :format by default if a format is specified. Of course, if they specify :negative_format, t...

Whoops, I should have put [PATCH] in the subject and I didn't.

The Problem

Right now, if you call number_to_currency(-1.23), it will return "$-1.23". This is not correct in most cases.

Desired Output

I have done a lot of re...