Each libra of silk of the quality named in the first item, at fifteen pesos, the one thousand picos amounting to one million nine hundred and fifty thousand pesos.

Each piece of Canton satin at fifty pesos, the ten thousand pieces amounting to five hundred thousand pesos.

Each piece of damask at forty pesos, the ten thousand pieces amounting to four hundred thousand pesos.

Each piece of gorgoran at ten pesos, the twenty thousand pieces amounting to two hundred thousand pesos.

Each vara of velvet at four pesos, the thirty thousand varas amounting to one hundred and twenty thousand pesos.

Taking from this amount the three hundred and thirty-five thousand pesos that those goods cost in China, and eight hundred and thirty-five thousand pesos for the cost of factors and of navigation, and whatever else their handling may cost, there is a net gain of two million pesos.

In that way his Majesty can obtain every year from Filipinas five million seven hundred thousand pesos net, after deducting the entire cost.

[The following list is from an undated memorial of probably the early seventeenth century which treats of the merchandise that the Portuguese were wont to take from China to Japan.  The memorial first defines the value of certain coins and weights and measures.]

First, the tae is equivalent to a ducado of ten reals of gold or silver; a maz is equal to one of our reals.  One maz is equivalent to ten conderins; each conderin being valued at six maravedis, is divided into ten caxes, each cax [i.e., cash] being a round brass coin half the size of a half cuarto [60] pierced with four holes, and with certain characters around the edge.  One hundred of them make one maz; and it is the only coin that is stamped with a die, for all the others circulate by weight.

Ranquel are ten pieces of plate or crockery-ware.

Pico is equivalent to one quintal, but has one arroba more than ours. Cate is a weight of twenty onzas.

The ship of the Portuguese carries from five to six hundred picos of white untwisted silk.  It costs at Canton eighty taes per pico delivered in Macan, and is sold in Xapon for one hundred and forty or one hundred and fifty taes.

Laden with retros (the fine red silk), of four or five hundred picos of all colors, at a cost of one hundred and forty taes, it is sold in Xapon at three hundred and seventy and sometimes four hundred taes.

The common assorted retros costs from fifty-five to sixty taes in Canton, according to its quality, and is sold in Xapon for one hundred taes.

The silk of the darca, of all colors, is worth forty taes in Canton, and is sold by the libra in Xapon at nine maces per cate.

The said ship will also carry from one thousand seven hundred to two thousand pieces of a certain silk worked with birds, and other pictures done in silk and unwoven silver. [61] Each piece is worth up to eleven maces, and the fine ones up to fourteen.  They have seven, eight, and nine gaxos, and they are sold in Xapon for about two and one-half or three taes apiece.