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NOTE F - COMMON STOCK AND STOCK-BASED COMPENSATION: Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions (Tables)
12 Months Ended
Dec. 31, 2018
Tables/Schedules  
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions

 

 

 

2018

 

2017

Risk free interest rate

 

2.65%–2.77 %

 

1.80%-2.23%

Expected lives (in years)

 

5

 

5

Expected volatility

 

163%-178%

 

173%-267%

Dividend yield

 

0%

 

0%