Create Slides in PowerPoint

I need powerpoint presentations created on an ad-hoc basis - some slides will need formatting, while others will need to be created from hand drawings. Please respond to the bid with examples of previous work you've done in Powerpoint. Please also respond to the following questions 1) How many slides can you create per hour (please provide numbers for a) formatting-only and b) creation from hand drawings)? 2) Have you done this kind of work for a top tier consulting firm before (e.g. McKinsey & Company)? Thanks.