You are the sales manager for an appliance store. You have a total of 100 sales people. 40 sales people sold $1000 or less and the rest sold over $1000. Of the 40 who sold $1000 or less, there is a 0.20 probability that the sales person was new. Of the sales people who sold over $1000, there is a 0.50 probability that the sales person is new. Given that a sales person is new, what is the probability that they sold over $1000?