The director of an automobile mechanic workshop is trying to better distribute inventory control efforts by adopting the ABC method. It provides you with the following data:

SKU	4021	9402	4066	6500	9280	405	685	3010	4400	2307
Demand (in units/month)	50	300	40	150	10	80	2 000	400	7 000	1 958
Cost ($/unit)	1 400	12	700	20	1 020	140	15	20	25	14

Considering the monthly demand and the contents of the table, sort the SKUs based on their monthly value.