Graph to show bookings

Hi,

I need to make a home page for an easy read of data for a department I am working with. I was thinking of a graph.

My data consists of:

Work programme, October, November, December etc.

Date of booking is confirmation its booked in.

A blank cell with no date is still pending more information.

I basically want to show what percentage of each programme is awaiting more info (blank date cell) and what percentage has been booked in (date cell updated).

Thanks