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Warrant Liability (Tables)
6 Months Ended
Jun. 30, 2020
Notes to Financial Statements  
Fair Value of Warrant Liability

The inputs into the binomial models are as follows:

 

   December 31, 2019 

April 14,

2020

Closing share price  $0.20   $0.0559 
Exercise price  $0.20   $0.20 
Risk free rate   1.59%   1.59%
Expected volatility   338%   310%
Dividend yield   0%   0%
Expected life   1.17 years    0.88 years