i was wondering if someone could tell me how to convert these percentiles to a iq number that i can understand...?

i was nervous and didnt think to ask the psychologist before i left the office...
i have the report of course.. i just dont understand these percentiles..

working memory index score 83 (13th %ile)
processing speed index 81 (10th %ile)
verbal comprehension index 105 (63rd %ile)
perceptual reasoning index 96 (39th %ile)

i did alot of other tests too so i dunno if they involve testing the IQ..
but from what i understand the WAIS is an IQ test and should be able to tell me what my iq is right? weather i have IQ of 60 or 100?

im just curious to know how bad my brain is...

edit:
i have tried to call him a couple times but he's hard to get in touch with if not impossible on the phone... the assistant says she'll tell him we called and blabla...