One easy way to do that is take a digital photo of the label and upload the photo.
I just went by what I read, not really understanding what I read.
>> the instructions call for so much per gallon pot.
I agree with Ken if the instructions were the usual "add one ounce to a gallon of water and then water heavily or lightly with this STRENGTH, or this DILUTION."
But if the label meant something like "add one ounce of pixie dust per gallon pot" , then the 3/4 tsp idea might be relevant.
Mostly I agree with Greene: what is the mystery product and what are the complete instructions? Are they saying to make a safe dilution in a gallon watering can, or to put X amount of stuff into each pot?
And is it to be laid on top of the soil, or mixed with soil before potting up?