1. Subtract the earliest date's sales in dollars from the most current sales figures to find the dollar amount of growth. For instance, company A sold $100 worth of goods in 1995
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((current month's sales  last month's sales)/last month's sales)x100
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1. Add together the net proceeds and dividends from your investment. This can be calculated over any period of time, so for example, if you want to calculate simple returns for the
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1. Open a new spreadsheet (or "workbook" in Microsoftese) in Excel. 2. Type the following column titles in the worksheet: A1: FV B1: PV C1: N D1: M E1: AGR. 3. Type (or
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