Metlock Co. has the following quantity discount policy with its supplier.

Quantity Price per Unit

1-499 units $16.00

500-999 units $15.70

1,000-1,999 units $15.10

2,000 units + $14.30

The economic order quantity is 630 units and the annual usage is 16,394 units. The ordering cost (K) is $23 per order and the carrying cost of inventory (H) is $1.90 per unit. Determine the most cost effective order quantity.(Round answers to 2 decimal places, e.g. 125.74.)

The most cost effective order quantity is?

Total Cost?