Math help needed

Ok, this is a serious question.  In orientation, we were told to wear insect repellent that’s at least 36% DEET.  Now, I know, some people might be suspicious of chemicals.  All I know is that malaria definitely kills people, so I’ll wear DEET on my feet to avoid it.  Even though it melts my toenail polish.  Which is serious-I wear sandals every single day here!

But, back to math.  I have a 6 ounce bottles of bug spray with 25% DEET that I want to mix with a 1 ounce bottle of 100% DEET.  I tried to figure out how much of the 100% stuff I should put into the 25% stuff, but I gave up.  To all my math teachers, I’m really sorry, it’s not your fault.  So, I’ve just been dumping both bottles together and figuring that it must be close.  I won’t be able to tell you if you get it right or not, though, you’ll have to argue amongst yourselves.  Please show all calculations for full credit.