Hi,
As you have base unit of measure KG in material master, order unit LB and now check what value for material in accounting-1 view?
As you have concept of 184.44 USD per 100 KG
= > For 1KG, the Value is 1.8444 USD
For 9000LB, you price will be 1.8444X9000X2.204 = 36585.51 USD
If you have wrong calculation with your ZA02 condition type -- check any routine assigned to your condition type ZA02 in MM pricing procedure( in t.code:M/08) and discuss with ABAPer for formula behind in the routine which cause wrong calculation in purchase order with unit of measure LB
Regards,
Biju K