i want answer of Ploss with seven digit after decimal point.

[karthikai dharma]

dear sir,
i want the answer of active power loss with seven digit after decimal point. 
please tell me where i have to insert format command.
yours 
D.Karthikaikannan
Associate Professor GrI,
Department of Electrical and Electronics Engg
Indra Ganesan College of Engg,
TamilNadu
INDIA