For 384.7 g and density 1.0113:
The volume is 384.7g/1.0113=380.4 cm[sup]3[/sup] or 380.4 cc

for U.S. customary fluid ounce:
1 oz=29.5735295625 cc
so 380.4 cc=12.86 oz

But I do not know which [u]oz unit[/u] for your case.
You need to know the exact value for the density, otherwise, you can estimate the range.