Correct process is :
1) Do consign return/purchase return item in HABIB
2) Do consign return item in HJM
3) Update listing price HJM
4) Re-consign to HABIB
5) Update listing price HABIB
Please take note that cost 2 HJM recalculation based on new listing price will only be effective in HJM. Then only the cost 1 and cost HABIB will follow cost2 HJM accordingly.