The ready reckoner [electronic resource] : or, trader's most useful assistant, in buying and selling all sorts of commodities either Wholesale or Retail; Shewing at one View The Amount or Value of any Number or Quantity of Goods or Merchandise from one Farthing to Twenty Shillings, either by the long or short Hundred, half Hundred or Quarter, Pound or Ounce, Ell or Yard, &c. &c. In so plain and easy a Manner, that Persons quite unacquainted with Arithmetic may hereby ascertain the Value of any Number of Hundreds, Pounds, Ounces, Ells, or Yards, &c. at any Price whatever: And to the most ready in Figures, it will be equally useful by saving much Time in casting up what is here correctly done to their Hand. To which is added, 1. A double table of Portugal money from 1 to 1000. 2. A Table of Expences or Wages by the Day, Week, Month, or Year. 3. A table of annuities, and Commission or Brokerage, from One to One Eighth per Cent. The seventh edition, with additions On Board and Timber Measure, Brick-Work, and Gauging by the Pen and Slip-Rule. By Daniel Fenning, Author of The Royal English Dictionary; Young Man's Book of Knowledge; Use of the Glores; The Universal Spelling Book, And, A new Grammar of the English Tongue, And others.