The new universal ready reckoner; or Every trader's infallible guide [electronic resource] : Containing, new and complete tables, most carefully cast up, and exhibiting at one point of view the value or amount of any quantity of goods in trade or merchandise, from one farthing to twenty shillings, not only by the pound, ounce, yard, ell, &c. but also by the long or short hundred, half hundred, &c. The whole so calculated, to assist in buying and selling all kinds of commodities, both wholesale and retail, as to be of the greatest use even to those who are acquainted with figures by saving considerable time, the various tables being so accurately executed, that they may with the utmost safety be relied on: and to those who are entirely unacquainted with arithmetic, such plain and easy directions are said down, as cannot fail of making this useful book familiar to every capacity; whereby may be ascertained the exact amount of any number of hundreds, pounds, ounces, ells, yards, &c. whatever may be the price. To which are added, a valuable catalogue of weights, measures, &c. and tables for casting-up wages, by the day, week, month and year. By John Bettesworth, master of the mathematical and naval Academy, Chelsca; and author of The New tables of interest; English grammar epitomized; arithmetic made easy, &c.