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Derivative liabilities (Tables)
3 Months Ended
Sep. 30, 2018
Disclosure Derivative Liabilities Tables Abstract  
Schedule of changes in derivative liability

The Binomial Option Price Model with the following assumption inputs:

 

    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 %

 

      June 30, 2018  
Annual dividend yield     —    
Expected life (years)     0.15-1.00  
Risk-free interest rate     1.08-2.12 %
Expected volatility     103-202 %

 

Fair value of the derivative is summarized as below:

 

Beginning Balance, June 30, 2018  $3,069,616 
Additions   427,076 
Mark to Market   1,641,457 
Reclassification to APIC due to conversions   (2,714,433)
Balance, September 30, 2018  $2,423,716