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Derivative liabilities (Tables)
3 Months Ended
Sep. 30, 2019
Disclosure Derivative Liabilities Tables Abstract  
Schedule of changes in derivative liability

The Binomial Option Price Model with the following assumption inputs:

 

    September 30, 2019
Annual dividend yield     —    
Expected life (years)     0.5-1.00  
Risk-free interest rate     1.74-2.08 %
Expected volatility     113-151 %

 

    September 30, 2018
Annual dividend yield     —    
Expected life (years)     0.5-1.00  
Risk-free interest rate     2.15-2.37 %
Expected volatility     87-123 %

  

Fair value of the derivative is summarized as below:

 

Beginning Balance, June 30, 2019 $2,991,953
Additions 1,894,203
Mark to Market 1,022,879
Reclassification to APIC due to conversions (659,526)
Balance, September 30, 2018 $3,203,751