Emphasize one slice by moving it out of the circle. Label slices on or next to the slices. Use whole numbers. Labels should run horizontal from left to right whenever possible, with the exception of the Y-axis label. A vertical Y-axis label saves space.
Vertical text is harder to read so make it large and simple enough to read when rotated.
Axis labels should be placed outside the graph. Y-axis labels should read from bottom to top. For charts and graphs, use sans serif typefaces, such as Helvetica, for all labeling and text. Go to Slide 2 in Normal View. Make any changes that you feel would improve the design of this presentation.