Zend certified PHP/Magento developer

Inverse a text at the bottom of a circle in PPT

I’m trying to making a text displayed around a circle, like “Service Reporting and Service Measurement” in the following picture:

enter image description here

In Powerpoint, by using Shape Format => Transform => Circle as Follow Path over a text, I can create this effect:

enter image description here

I don’t know how to inverse “Service Reporting and Service Measurement” at the bottom to make it readable (without considering other part of the circle)

Does anyone know how to do this?