Lugini Watch's annual demand is 119. It can produce at a rate of 22 watches per month.

Lugini Watch’s annual demand is 119. It can produce at a rate of 22 watches per month. Using the information of current setup cost for the production run and carrying cost per unit a year, the company's EPQ (Q_opt) has been calculated as 52 units. Find the I_max.  Please keep two decimal points!