Our world in data has compiled data from the FAO (a project of the UN), and shown the breakdown of the global use of soy:


tofu = 2.6
soy_milk = 2.1
other_eg_tempeh = 2.2
oil = 13.2
poultry = 37
pig = 20.2
aquaculture = 5.6
other_animals = 4.9
dairy = 1.4
beef = 0.5
pets = 0.5
soybeans_fed_directly_to_livestock = 7
biodiesel = 2.8
lubricants = .3
other_industrial =  0.7

# RESULTS:

it looks like if we total them up, we actually get 101%.

total = other_industrial   lubricants   biodiesel   soybeans_fed_directly_to_livestock   pets   beef   dairy   other_animals   aquaculture   pig   poultry   oil   other_eg_tempeh   soy_milk   tofu
print(total)

# RESULTS:
: 101.0

we can use these numbers, anyway.

so how much of the total soybean crop is used for soybean oil?

non_oil_food_uses = other_eg_tempeh   soy_milk   tofu
percentage_of_beans_pressed_for_oil = total - non_oil_food_uses - soybeans_fed_directly_to_livestock
print(percentage_of_beans_pressed_for_oil)

# RESULTS:
: 87.1

and we can check this against the amount of soy meal that is produced as a byproduct of oil production with a little reasoning: a soybean is about 20% oil, so lets see what 80% of 87.1% is

oil_in_a_soybean = 20/100
meal_produced_from_a_soybean_pressed_for_oil = 80/100
how_much_meal_is_produced_globally = percentage_of_beans_pressed_for_oil * meal_produced_from_a_soybean_pressed_for_oil
print(how_much_meal_is_produced_globally)

# RESULTS:
: 69.67999999999999

well god damn. that's what the FAO said we fed to livestock!

so almost all soy (87%) is pressed for oil, and the industrial waste is fed to livestock.