Take a few minutes to walk the interviewer through your variety of experience. If you have a large range of projects in your portfolio, it is probably easiest to speak briefly about the largest project and smallest project you have worked on recently. Try to use examples from your most recent employer.
"I have experience working on a large variety of projects. This year my smallest project has been a $450K single family home and the largest, a $20MM multi-residential condo development. I am comfortable working on either large or small budget projects. Each project, no matter the budget, brings their own challenges."
"As I am newer to project management, I have not had the opportunity to work on many large-scale projects. At this point in my career the projects I've worked on range from $50K to $600K. Regardless of the project or budget size, I believe in caring for each client the same. Every project deserves impeccable attention to detail."