Scheduling Agreement

Hi Experts,

Need your assist regarding Scheduling Agreement issue.

How i want to maintain Minimum Order Quantity charges?

For example,

1 - 100pcs - amount $100.00 (When purchase 10pcs - amount charge $100.00, when purchase 99pcs - amount also charge $100.00, i want to set minimum charges.. how to do that??)

101pcs - 200pcs - amount$80.00 (when purchase 150pcs - amount charge will be base on quantity; $80.00 * 150pcs)

Thanks..