What are the different parameters used to measure the size of business?

If you had given the task to measure the size of business, what parameters you may use ?
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What are the different parameters used to measure the size of business?

Following are the different parameters used to measure the size of business '
(i) Number of persons employed in business
(ii) Capital invested in business
(iii) Volume of output
(iv) Value of output
(v) Power consumed
(vi) Investment in plant and machinery