Birmingham ready calculator
Subtitle: shewing in twenty tables, the sums necessary, from one shilling to fifty pounds, to produce realprofits, from 21/2 to 50 per cent, on prime cost, after allowing discounts from 21/2 to 50 per cent on the selling prices.
Publisher: printed by Pearson and Rollason
Published: 1778
Place of publication: Birmingham
Language: eng