To convert kgs to ounces multiply by 35.27397. I've generated some hopefully helpful examples randomly below, as with most random sentences please excuse the repetitive and occasionally comic outcomes.
In 660 kgs of wheat there are 23280.82 ounces, to achieve this take 660 and just multiply by 35.27397.
You have 700 kgs of barley but you need to know how many ounces that is. To get the answer multiply by 35.27397 which gives you 24691.78 ounces.
You've got 600 kgs of sugarbeet but someone only wants to buy that in units of ounces, to change the units multiply by 35.27397. Now you have 21164.38 ounces.