Work the valuation of a company
fin_valuation uses the revenue, operating margin, expenses and PE to compute a market capitalization
fin_valuation(
  revenue = 6e+06 * 30000,
  opmargin = 0.08,
  expenses = 0.2,
  PE = 30,
  symbol = "$",
  use = c("B", "M")
)| revenue | Revenue of the company | 
| opmargin | Margin on operating revenue | 
| expenses | Additional fixed costs | 
| PE | of the company | 
| symbol | Currency | 
| use | reporting values in "B" (billion) or "M" (millions) | 
Revenue is multiplied by opmargin to get a gross profit. From this the proportion specified in expenses is subtracted
and the resulting earnings turned into a price via the PE
value
Other Miscellaneous Functions: 
deg2rad(),
fin_NI(),
fin_interest(),
fin_percent(),
loadings.MxModel(),
rad2deg(),
umxBrownie()
fin_valuation(rev=7e9, opmargin=.1, PE=33) # Market cap = $18,480,000,000 # (Based on PE= 33, operating Income of $0.70 B, and net income =$0.56B
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