Reference TEC439197 : How to set the default Resource Availability Rate
Reference TEC525604 : How are Allocation, %Allocation, and Availability calculated on the Resource, Projects or Detail pages?
Reference TEC435572 : How should I configure my Time Slices?
Reference TEC1007349 : FTE is incorrect for resource's who's availability does not match the Standard Calendar
Reference TEC1112555 : How is full-time equivalent (FTE) allocation calculated?