How to clear Balances for PO

Hi Team,

PO 2054000030 should be match to three invoices.

1. 1) 036/15 (Amount: Excl. Tax = RM30,690) – invoice before Oracle go live, booking done in SUN and migrate to Oracle without PO matching.
2. 2) 042/15 (Amount: Excl. Tax = RM40,920) – match to PO however, matching done 50% from Amount RM 81,840 (Instead 40% from total PO RM102,300)
3. 3) 045/15 (Amount: Excl. Tax = RM30,690) – match PO with correct amount, 30% from total PO, RM102,300.

Please advise correct action to clear the accrual?

Our balance to clear in PO accrual is RM 20,460.

What is the correct action to be done?

Thanks,