Weekly Maths Problem

I have been thinking about getting some posters and leaflets printed. The posters will cost £10.00 for 100 and £12.50 for 200 A4 colour posters. Leaflets cost £8.50 for 100 and £17.00 500. I have £25.00 to spend what should I buy?

You can share your answers here on Facebook or with me as I visit during the week. Remember you need to show your workings out to get the maximum points.