Kwh values not getting correctly

[firmware01]

Hi,

I am working with ATM90E26 IC with STM32.
I can able to read voltage,current,power,frequency and pf correctly from the IC.
But for KWH values I am reaching absolute active energy register.I am not getting the proper kwh values from the iC.
With V=230
I=10A
Pulse constant =3200
shunt=500Uohm ,voltage divider;840kohm
I tested the ic for one hour but the values I got not desired kwh values.

I am accumulating the kwh register values after reading with other variable.

What are the steps to be followed to get the kwh from kwh register accumulated values.
What are the calculations needs to be done.
Any suggestions are helpful.
Thanks