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Derivative liabilities (Tables)
 6 Months Ended
Dec. 31, 2019
Disclosure Derivative Liabilities Tables Abstract  
Schedule of changes in derivative liability

The Binomial Option Price Model with the following assumption inputs:

 

    December 31, 2019
Annual dividend yield     —    
Expected life (years)     0.5-1.00  
Risk-free interest rate     1.51-2.09 %
Expected volatility     121-153 %

 

    December 31, 2018
Annual dividend yield     —    
Expected life (years)     0.5-1.00  
Risk-free interest rate     2.49-2.72 %
Expected volatility     87-123 %

  

Fair value of the derivative is summarized as below:

 

Beginning Balance, June 30, 2019 $2,991,953
Additions 3,538,927
Mark to Market 2,314,089
Reclassification to APIC due to conversions (957,488)
Balance, December 31, 2019 $3,259,345