The trader's assistant [electronic resource] : containing I. Exact and useful tables, shewing the Value of any quantity of goods or wares, ready cast up, more adapted to the Merchant's use, than any other extant. II. Tables of Interest, shewing at one view, the Interest on any Sum of Money from L. 1 to L. 1000, at 4. 4 1-half, and 5 per cent. for any number of days. III. A Set of Tables, shewing the Exchange or Commission on Bills and Goods. IV. A Table, shewing the annual amount of Expences, Income, or Wages, from One Penny to Nine Pound per day. V. A Table reducing sundry pieces of Foreign current Coin, to British Money. VI. A Table reducing Scots Money to Sterling. Vii. A List of all the Fairs in Scotland. And Viii. A set of tables for mechanics, particularly weavers, in warping.