Sales order(VA01) discount value not calculated

Hello Gurus,

As Iam creating Sales order i.e(VA01). In my sales order Cash discount is not deducting .It was adding the discount value for example(100+10=100). but it should be (100-10=90).I have checked the Pricing procedure also.

Apart from that can we used two condition type for same order

Please find below I have attached the screen shot also.

Regards,

Sukdev.