If you had the work in process total how do you calculate the material and conversion cost?

That's too little information. If quite literally all you had was the total that went into WIP there would be no way to know what was materials and what was conversion costs. You're either trying to do something that can't be done or you're leaving out important information that you have available.

I couldn't even begin to guess what info you might have available because this stuff applies to several things and you've kind of pulled it out of mid-air and taken it out of context.