What does "yields" mean?

[Kohsamui]

Have a 6 oz box of blackberries. Fitday says A: 6 "oz yields", B: 6 oz, C:
grower says 170 grams:
A: B: C:
Cals. 69.7. 73.1. 83
Fat. .79. .83. 1.2
Satfat. .023. .024. ?
Chol. 0. 0. 0
Salt. 1.6. 1.7. 0
Potas 262.4. 275.6. 245.0
Carbs 15.6. 16.3. 17
Fiber. 8.6. 9.0. ?
Prot. 2.3. 2.4. 1.7

This fabulous chart probably won't send very well, but its intention is to show the differences - and begs another question: use packer or fitday data?

Finally, I see "yields" with meat listings, too and assume this might mean what you get after cooking. Is that right?

Thanks in advance for any input.

[vabeachgirlNYC]

Yields is just another form of measurement for your food... 6oz = 170g. For blueberries 6oz would be approx 3/4 to 1 cup depending on the density.

For my salad dressing the whole bottle is 16 fluid ounces which equals 16, 1 oz servings or 16, 30 gram servings or 16, 2 tablespoon servings or 2 cups total.

[Kohsamui]

Thanks for your reply, vabeachgal, but I probably messed up my question. Here goes again: I weigh my blackberries on my scale. It says 6 oz. I open my FitDay food charts, and it gives me several choices. One is "oz yields", another is "oz". The nutrient values are different for each. I wonder why the differences, and wonder which I should use for the most accurate inputs...