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Re:Why Is the Dollar Sign a Letter S? by kleiba on Sunday February 08, 2015 @04:53PM (#9018742)
that $200.00 is harder to alter

Luckily, though, it is common to use commas to separate groups of three digits: $200,000.00 But this means a change of a factor 1000 which might be less useful than the original 20$ -> 320$ example.

Re:Why Is the Dollar Sign a Letter S? by spacecowboy_lon on Monday February 09, 2015 @04:02AM (#9020268)
That depends on locale other countrys do not use commas as separators in the same way