Linguistic help :)

I feel quite confused by this certain sentence :
‘‘Your ability to predict entrance fees depends on your accurate reporting of … blahblah activity’’ . Should it be ''depends on your accurate reporting of ‘’ or ''depends on your accurate report of ‘’ ?

P.S. I suppose it’s probably not right the place for such stuff but I do want to sort this one out.

Do we have any copy editors in the house? I honestly think both versions could be used, as they both sound okay to me. Is this a sentence you are including in an essay, or just something you came across in a brochure or on a website?