Hi all,
In reading the wiki pages regarding currency and measure, I'm not
finding much info or discussion around the use of negative prefix in
currency. Sometimes it is placed before the currency symbol,
sometimes it is placed after. In other cases the prefix is not used
at all and column headers are used to indicate whether the amount is a
credit (+) or debit (-).
Examples of prefix use:
Chase.com
<td align="right" style="width:80px;">$-243.76</td>
Amex.com
<td class="colAmmount" onclick="fireClick(this, 9)">-172.12</td>
Mint.com
<td class="change">–$16</td>
BofA.com
<span class="textn2">-$8.06</span>
What we're initially proposed to do at Mint.com is this:
<span class="money"><span class="sign">-</span><abbr class="currency"
title="USD">$</abbr><span class="amount">777</span></span>
defining the attribute "sign".
In a discussion with Guillaume Lebleu privately, he mentioned that the
distinction here is that the amount itself is not positive or
negative. Rather, it is the transaction. For this, we define it as a
credit or debit. Which could lead us to this:
<span class="money"><span class="transaction-type" title="debit">-</
span><abbr class="currency" title="USD">$</abbr><span
class="amount">777</span></span>
I'd like to hear some thoughts from the semantic specialists on this
list.
Many thanks,
Justin
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