How requirements will effect stock

Hello

there are two requirements

req1

movement type 261 (GI for order), quantity 200, debit/credit - S

req2

movement type 261 (GI for order), quantity 300, debit/credit - H

Do I understand correctly that req1 (once material doc is posted) increases the stock by 200 units and req2 decreases the stock by 300 units?

Thanks