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Derivative Liability (Tables)
6 Months Ended
Jun. 30, 2019
Notes to Financial Statements  
Assumptions to measure fair value

The Company uses a weighted average Black-Scholes-Merton option pricing model with the following assumptions to measure the fair value of derivative liability at June 30, 2019 and December 31, 2018:

 

   June 30,  December 31,
   2019  2018
       
Stock price  $0.168   $0.32 
Risk free rate   1.92%   2.63%
Volatility   140%   150%
Conversion/ Exercise price  $0.008   $0.21 to 0.25 
Dividend rate   0%   0%
Schedule of Derivative Liabilities at Fair Value

The following table represents the Company’s derivative liability activity for the six months ended June 30, 2019:

 

Derivative liability balance, December 31, 2018  $3,833,506 
Issuance of derivative liability during the period   5,721,939 
Fair value of beneficial conversion feature of debt converted   (2,264,578)
Change in derivative liability during the period   101,890,733 
Derivative liability balance, June 30, 2019  $109,181,600