Mathmatical Order of Operations Question

I have just started the App Academy free online courses and I have reached the numbers section. I have been instructed to “play with the sequence” of numbers and operators. I am trying to follow the “PEMDAS” rules of mathematics; however, I entered a formulae as “10%3*(2.56)-(73)/8” and cannot follow the guideline because I don’t know how the %(modulas sign) fits into the guideline. Can anyone help with this?

I figured it out! The answer is…#=32.5610%3(15)-73(21)/8(2.625)= 15 - 2.625=12.375