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Cinrich Stage Supplies is a manufacturer of a specialized type of light used in theaters. Information on the first three years of business is as follows: Calculate profit and the value of ending inventory for each year using full costing. (Round cost per unit to 2 decimal places, es. 15.25 and other answers to 0 decimal places, eg. 125. Cinrich Stage Supplies is a manufacturer of a specialized type of light used in theaters. Information on the first three years of business is as follows: Calculate profit and the value of ending inventory for each year using full costing. (Round cost per unit to 2 decimal places, es. 15.25 and other answers to 0 decimal places, eg. 125