I have aproblem with again summary report in payables

I did a credit Vendor against burchase bills 

For example i have a vendoer and i puchased some goods from him for example on Jan 2017 with 100$

on Feb 2017 i returned that goods to him and did a Vendore credit with same products and same price, 

but when i check again summery report in payables i still see the purchase bill in the report and offcoure that lead to show the total amount of payables increase than the reality with 100$

How Can i handle this ??

Thanks