@Christian Wolinski Thank you!

@acer 

makes sense now. thanks all :)

@Preben Alsholm 

Apologies if that wasnt clear.

My point is the value when rounding it is incorrect. It should be 7.204x10^9 instead of 7.216x10^9. 

So my question is why is it doing that, am i doing something wrong?

thank you sir. appreciate it

thank you sir. appreciate it