InDesign symbols characters moving to the front of words

So im havining an issue with InDesign thats driving me nuts and I was hoping someone here could help me. Im writing a company profile document that uses lots of symbols like &,%,$,(,), but for some reason when I go to type out something like 100% the % symbol will jump to the front of the word so it ends up like %100 so im having to write everything backwords. this isnt a massive issue right now but I dont want to have to explane all this to our corpotate writer when its time for edditing.