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SKU Mean demand (units month) Std. Deviation (unitsmooth) Toys Direct Data Table 1 Unit cost (Sunit) Unit Sale Price (S/unit Optimus Prime 15000 2000 S16 $20 Bumblebee 10000 3000 520 $23 Starcream 10000 1500 SI S16 For the data provided in Table 1, suppose the holding cont per unit per month is 3% of the cost of the item and the backorder cost is 20% of the profit margin per month The lead time to replenish the toys from the manufacturer in South Eastern China is two months. The fixed cost of an order is $500 for any toy order without substitution, the tarpet service level for Bumbien should be closest to? 30% 40% 50% 80