First, set up a model cell with the replacement formatting. Next, press Ctrl+H to launch the Find and Replace dialog. There, define both the Find What and Replace With formatting by clicking "Choose ...
Click "Format" next to the Replace With field, and select the correct number format in the Number tab (in this case, ...
The Change Shape feature changes your graphic to a different graphic, preserving its formatting and size. Insert an icon into the slide and click the Graphics Format tab. Click the Change Graphic ...