Values Carry forward issue

[niranjan_capgemnini]

Hi Experts,

  I have small requirement please give some suggestion to come out from the issue.

Requirement is I have opening stock and Ending stock ,

if opening stock is zero then previous endstock should be carry forward to next month opening stock .it is not carry forward in jan2018

kindly give some suggestion how to get the carry forward values.

Thanks in advance.....