A jeweler purchases silver for use in its products. The firm uses 160 grams of silver per week and purchases silver for \\( \\$ 2.2 \\) per gram from a supplier. The cost to hold one gram of silver in inventory for one year is \\( \\$ 0.44 \\). Each time the firm orders silver from the supplier, the firm must pay a \\( \\$ 14 \\) order processing charge. Assume there are 52 weoks in a year and round your answer to the nearest integer value. What is the optimal order quantity (in grams)? grams