I am trying to implement some code and I need change the units of the latitude, longitude that I recive from a CAM message which standard is described here ETSI Standard.
It says that the latitude and longitude is especified as (0,1 degree) but I need to use it as degree. As (0,1 degree) is quite confusing and I don't know how to change it.
How can I calculate the change?
If you know the change in tenths of microdegrees, then divide by $10^7$ to express the change in degrees.
To go the other way (degrees to tenths of microdegrees), multiply by $10^7$.
There are $10$ tenths of microdegrees in one microdegree, and $10^6$ microdegrees in a degree. Hence the overall factor is $10 \cdot 10^6 = 10^7.$