You have fair chances... I've same score so we are gonna get the ITA on same day...
Since 18th May, ITA# was around +/-750 except the last draw when ITA# increased to 1000.
Now lets wait for another draw (on 09/21) and that will tell us about the trend...
My (tentative, as I've still not yet submitted my EE profile) score is 472, so very much in the same boat as you!
As I've argued in the "As per CIC officials, from Sept/Oct they will invite 2000+ ITA" thread on here, I fully expect towards the end of the year for EE score to go down. It is likely that they will finish the backlog of pre-EE applicants around the end of September and thus the number of ITAs issued will increase and CRS scores will go down. I expect the required scores to be around 450-460 by the end of this year.