Hello friends

I have a friend who makes space cake edibles

We use 20grams of weed in the butter which will make 20 slices of cake… Essentially each slice contains and average of 1gram of weed.

The weed contains on average 12%THC

How many mg (milligrams) of THC is in each slice on average?

I believe it is 120mg THC per slice.

Can anyone confirm please?