The relation of the expense incurred on his Majesty’s account during the expedition made to the kingdom of Joló by Don Sebastián Hurtado de Corcuera, in December, 1637; also the value of what was seized and gained from the enemy; and the net gain. Subtracting the one from the other, the result is as follows:
| pesos | tomins | granos | |
| Gained from the enemy, | 28,345 | 7 | 0 |
| Expenses of the expedition, | 26,314 | 5 | 4 |
| Net remainder of gain, | 2,031 | 1 | 6 |
The value of what was gained from the enemy can be analyzed in the following form:
[A list, partially duplicate, of the artillery taken from the Joloans follows, of which we present only the final summary, in order to avoid such duplication. It appears that the artillery when taken to Manila was appraised by one Melchor Pérez, royal chief of artillery and artillery-founder.]
Bronze artillery, useful
| Pieces | Make | Weight in quintals and libras | Weight of ball in libras | Value of one quintal in pesos | Total value in pesos | |
| 1 | English | 11 | 3 | 30 | 330 | |
| 1 | falcon of King Don Sebastián of Portugal | 11 | 4 | 28 | 308 | |
| 2 | of King Don Sebastián of Portugal | 15 | 10 | 26 | 390 | |
| 1 | Manila, of the time of Tavora | 26,80 | 10 | 26 | 670 | |
| 21 | cámaras[1] | 124 | ||||
| Bronze artillery, useless, appraised merely at thevalue of the copper | ||||||
| 1 | English | 11 | 3 | 12 | 132 | |
| 1 | Siamese | 4 | 1 | 12½ | 54 | |
| 10 | versos | 14 | 12 | 168 | ||
| Cast-iron artillery | ||||||
| 1 | English | 7 | 35 | 3 | 12½ | 91 |
| 1 | Macao | 12½ | 4 | 12 | 156 | |
| 1 | English | 11 | 4 | 12½ | 137 | |
| 1 | Dutch | 10 | 88 | 12½ | 136 | |
| 1 | English | 12 | 25 | 5 | 12½ | 153 |
| 1 | Dutch | 12 | 25 | 5 | 12½ | 153 |
| 1 | English | 10 | 45 | 5 | 12½ | 130 |
| 1 | English | 14 | 63 | 7 | 12½ | 182 |
| 1 | Dutch | 18 | 9 | 12½ | 225 | |
| 1 | English | 21 | 33 | 9 | 12½ | 266 |
| 1 | Dutch | 24 | 97 | 11 | 12, and 1 tomin | 312 |
| 1 | iron base [roquero] | 4 | ||||
Firearms
| pesos | ||
| 3 | Vizcayan arquebuses | 12 |
| 10½ | Macao muskets | 31 |
| 11 | Vizcayan field muskets | 66 |
| 1 | Dutch arquebus | 4 |
| 19 | Macao arquebuses | 57 |
| 16 | Dutch muskets | 64 |
| 1 | musket de pinote of Macao | 4 |
| 2 | Vizcayan arquebuses | 10 |
| 7 | arquebuses from Macao | 21 |
| 7 | Japanese small guns [escopetillas] | 21 |
| 2 | Vizcayan field muskets | 12 |
| 5 | Dutch arquebuses | 15 |
| 10 | Dutch muskets | 50 |
| 1 | bit of a Vizcayan gun [escopeta] | 1 |
Besides the above, in cloth or money, 2,866 [pesos]; in small darts and blowpipes, 50 [pesos].