EXAMP. 1. How much Sterling money is equal to 1459 ducats 18 sols 1 denier, bank money of Venice, exchange at 52½ d. Sterling per ducat?
| Duc. d. | Duc. sol. den. | d. |
| If 1 : 52½ :: 1459 18 1 | 52½ | 52½ rate. |
| Sols. | ||
| 10 = ½ | 26½ | |
| 5 = ¼ | 13¼ | |
| 2 = ⅛ | 5¼ | |
| 1 = ¼ | 2½ | |
| den. 1 = ⅛ | 0½ | |
| d. 75868 | ||
| ½ = 729½ | ||
| ¼ = 364¾ | 47½ | |
| 76962½ | ||
| 47½ | ||
| Rem. | ||
| 12) 77010 (6d. | ||
| 20) 6417 (17s. | ||
| L. 320 17 6 Sterling. Anf. |
Bank money is reduced to current money, by allowing for theagio, as was done in exchange with Holland; viz. say, As 100 to 120, or as 10 to 12, or as 5 to 6, so the given bank money to the current sought. And current money is reduced to bank money by reverting the operation. And in like manner may picoli money be reduced to current or to bank money, and the contrary.
12 Denari } make 1 foldi s. d.
20 Soldi } 1 pezzo = 4 6 Sterling.
Books and accounts are generally kept in pezzos, foldi, and denari; but some keep them in lires, foldi, and denari; and 12 such denari make 1 foldi, and 20 foldi make 1 lire.
The pezzo of exchange is equal to 5½ lires; and, consequently, exchange money is 5½ times better than the lire money. The course of exchange runs from 47 d. to 58 d. Sterling per pezzo.