Bower install polymer-currency-filter
<link rel="import" href="[components]/polymer-currency-filter/polymer-currency-filter.html">
{{ 169535.216 | currency }}
$169,535.22
{{ 169535.216 | currency('USD$') }}
USD$169,535.22
{{ 169535.216 | currency('USD$', 4) }}
USD$169,535.2160