Quantity not calculated as per Over delivery tolerance in Purchase order

Hi Experts,

I have created a Purchase order for supply of a 2000 Ton of Raw material. The Over delivery tolerance is 10% and hence system should allow to take GR for 2200 Ton.

We have done multiple Goods Receipt for partial quantities on various dates as mentioned below and the Total quantity delivered is 2016.99 Ton. It was observed that the final delivered indicator is set by the system automatically which should not be the case because the over delivery tolerance allowed is 10% hence goods receipt can be made for 200 Tons extr. But system has set the final delivery indicator only after Goods receipt of 16.99 Ton extra.

Please suggest why system is behaving like this and not allowing over delivery of 200 Ton(10%).