Wap% instead of wap@

Ok... So I'm normally pretty tech savvy but I'm noticing that my APN is saving as wap%cingulargprs instead of wap@cingulargprs.

I tried creating it without the sim (someone on another forum suggested it) and it still won't save correctly.

I haven't had the opportunity to test the data yet as I'm using an iPhone 4 and a Blackberry torch (different sim sizes) and my adapter hasn't come in the mail yet haha. I just wanted to add the data beforehand and see if I get any weird texts from AT&T. Will the wap% make a difference or am I just freaking out?