Of Estimating the ALLOWANCES, PREMIUMS, or THE HE Allowances or Premiums estimated at so much Cent, are Commission, Insurance, Brokerage, Interest, Discount and Exchange between England and Ireland. Commission is a Premium allowed by the Employer to his Factor for transacting his business abroad. Insurance is paid by one Merchant to another, or to a Company for insuring his ships, goods, &c. that is engag ing to make good to him the value insured, if the same be lost or damaged. Brokerage is an allowance to the Broker, who is a person employed to find out customers for merchandizes and the contrary. Exchange, Interest and Discount will be treated of in their respective places.. S.2. Now Now in these cases we have given the rate cent. to find the allowance upon a given sum at the same rate: that is, three numbers given to find a fourth proportional, viz. 1. As 100: its rate :: so is the given sum: to its rate or the proportional allowance. Case I, When the rate or premium is a whole number, and likewise the given sum, on which the premium is to be found. This is already taught (see page 85.) Case II. When the given sum (whereof the premium is to be found) is of divers denominations, multiply it by the rate or premium of 100l. and divide by 100. Examples. 1. What is the commission on 4171. 16s. 8d. at 2 ́2. Sold goods for A B to the amount of 1531. 2s. 6d. and for commission and risque of debts am to receive 4 what doth it amount to? Answ. 61. 2s. 6d. cent. 3. What is the exchange of 7501. 18s. 8d. English mo ney, at 7 cent. ? Ansu, 521 11s. 313d. 4. How much is the interest of 3001, 10s. at 8 cent? Answ. 241. Qs. 94. Case III. When the rate is a fraction, Multiply the given sum thereby, viz. divide it by the denominator of the rate, &c. as before. What is the commission on 10261. 17s. 4d. at 4 cent.? S. d. 1. 6. How much is the brokerage of 8461. 19s. at -cent,? Answ. 21. 28. 4b7d. 7. Negociated bills for account of AC to the amount of 15381.13s. 61d, what is my commission at Answ, 51. 15s, 4352d. cent.? 8. What is the brokerage of 7001. 14s. 6d. at 4s. 9. What must I pay my broker when he sells goods to the value of 5001. 10s. 7d. at 7s. Answ. 11. 15s. 0-839d. cent.? Case IV... When the rate is a mixt number. For the integral part multiply the given sum by Case 2, and for the fraction, Plast: add these products together, and proceed as before. Exampler. 10. What is my commission on 199. 3s. 6d. at 21 cent. ? 1. s. d. 199 3 6 11. I have sold goods for account of Themas Jones, amounting to 536). 10s. what is my commission at 21 dpa Answ. 131. Bs. 3d, cent. ? 12. What is the commission on 10091. 18s. at 21 cent.? Answ 221. 14s, 5d.. 13. Insured 4271. 13s, on the ship Sea Horse, for the present voyage to Barbadoes: insurance at 84 what dot it amount to? Answ. 351. 5s. 747 d. 3 cent 14. Bough 14. Bought by order and for account of Jaques Durand of Bourdeaux, 400 barrels of beef, which cost 3901. 17s. 6d. which I ensured at 53 cent. I demand the insurance, my commission on the same at 24 cent. and for insuring the same at cent. ? Answ. Insurance 221. 9s. 6d. Commission at 21-91. 15s. 51d. at -11. 19s. 1d. Method 2, by Practice. Divide the rate into aliquot p ts of 100, and divide the given sum by the denominators of the parts, &c. Examples. I demand the interest of 2 341. 163, 3d. at 5 cent? 1. S. d. What is the commission of 10261. 17s. 4d. at cent? 1. S. d. Or thus, of 100 is zsa 10)513 8 8 105 £.5 2 71026÷÷200 1178.4-200 |