Safety Stock: An extra stock kept by the company to minimize the risk of stock-out. It acts as a cover against supplier lead time, production lead time, customer demand etc of uncertain activities which affects the stock level. It helps to continue the production activities. It is also known as buffer stock. Formula: Safety stock = (Maximum daily usage*Maximum lead time) – (Average daily usage*Average lead time) OR Safety Stock = Z*standard deviation lead time* average daily demand Where, Z = service level Stock-out: It is a situation when stocks are not available for sale or at the time of requirement. Lead Time: It is a time gap between issuing the purchase order and receiving the ordered product. Reason to maintain Safety Stock: · It is good to maintain safety stock when the lead time (time between issuing the purchase order and receiving the ordered product) will increase. · When the demand of the products fluctuate very fre
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