Currency, in dollars, represented as a positive decimal number rounded to the nearest one-hundredth. Such numbers begin with the character $, have commas separating each group of three digits to the left of the dccimal point, and end with two digits to the right of the dccimal point, for example, $8,937.43 and $7,777,777.77.
^$\d{1,3}(,\d{3})*.\d{2}
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