add the word dollars following the dollar sign and figures. In addition, if a sum is a whole
dollar amount, most writers omit the decimal and zeros ($300).
United States – BUSPROG.BENG.GUFF.17.6.6 – DISC.BENG.GUFF.17.6.6
United States – BUSPROG.BENG.GUFF.17.6.7 – DISC.BENG.GUFF.17.6.7
Basic Guidelines for Expressing Numbers