You can put this solution on YOUR website! Assuming it is a standard pound that contains 16 ounces (rather than Troy weight that contains 14 ounces), here's how to solve this:
16 oz = 1300
9 oz = x
What you're looking for is 9/16 of 1300
9 /16 = 0.5625
Multiply that by 1300 to get $731.25 for 9 ounces
.
Must be a valuable item!