The following is Tenang Enterprise contribution format income statement for last month: The business has no beginning or ending inventories. A total of 20, 000 units were produced and sold last month. Calculate the business's contribution margin ratio Calculate the business's break-even (in units). If sales increase by 100 units, by how much should net operating income increase? (You are not required to prepare new income statement. Use contribution margin approach to answer this question). How many units would the business have to sea in order to attain the target profit of RM 150, 000? Calculate the business s margin of safety (MOS) in RM and degree of operating leverages (DOL). Briefly explain how MOS and DOL calculated in (e) above will affect this business