Hi, there!
My name is Paris, and I was glad to see that you're looking for a PowerPoint developer. According to your brief, you want somebody to polish your presentation and turn the graphs in greyscale.
I will charge you $480 and can deliver within a couple of days from awarding (two milestones).
I'm among the most experienced, and skilled MS Office developers on this platform. I have completed 266 projects successfully in less than six years, and I feel confident to complete your project as well. You're welcome to visit my page on this platform (https://www.freelancer.com/u/paris2785) and get an idea of who I am and what services I provide to my clients.
I'm online from 8 am to 9 pm daily (including weekends), Athens time. I'm looking forward to working with you.
Sincerely,
Paris Pallas