Data on Conducting Meetings in Beijing, China

Need the following info: 1. Average rental cost of business conference room (per hour) 2. Average rental cost of banquet venue for business dinner (per hour or per event) 3. Average cost for meal at a high-end business banquet dinner in Beijing (per person) Need to included credible sources (ideally from official statistics) for each of these points. No personal analyses/writing required. Delivery: 4pm London Time Please write in your proposal briefly what sources you are going to use. Thanks!