April 21, 2015 12:50 pm Teens Spend Big on Promposals, Study Finds Forget about the dance itself, just asking someone to the prom is pricey. A new survey finds kids are spending an average of $324 on the “promposal.” NBC Chicago’s Zoraida Sambolin has more. Local 2:02 Pro-Israel, pro-Palestinian demonstrators rally on University of Chicago campus 2:09 Chicago-area breweries prepare to celebrate Craft Beer Week 9:34 Chicago police release new details in arrest of Xavier Tate 2:23 Suspect accused of killing CPD officer Luis Huesca 3:10 Suspect charged in killing of Chicago police officer faces additional charges