You can evaluate your business using the following methods: NPV, EVA, and IRR.
The NPV (net present value) of an investment is the current value of a future series of
payments and receipts.
The IRR (internal rate of return) is the interest rate received for an investment
consisting of payments and receipts that occur at regular intervals.
ROI - Return Of Investment.
ROR - Return Of Relationship.
EVA - Economical Value Added.
ROA - Return of Assets (Net Income / Total Assets).
DCF - Discounted Cash Flow.
EBIT - Earnings Before Interest & Tax Forecasts.
ROIC - Return of Investment Capital Forecasts.
EOQ - Economic Order
Quantity
For more information please see financial Excel Spreadsheets.