Quota Arrangement - Minimum Qty Split

Hi,

i read the docs regarding minimum split qty on follwing link

Example for Splitting Quota Arrangement - Master Data (PP-MRP-BD) - SAP Library

As per above link system is assigning remaining Qty 300 to Vendor D

But when i tested the same  scenario system is assigning remaining Qty to Vendor C. Screen shot is attached.

please explain the reason.