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WARRANT DERIVATIVE LIABILITY (Tables)
3 Months Ended
Mar. 31, 2023
WARRANT DERIVATIVE LIABILITY.  
Summary of key assumptions used to determine fair value of warrants

March 31, 

December 31, 

 

2023

2022

 

Number of shares underlying the warrants

322,807

322,807

Fair market value of stock

$

0.16

$

0.15

Exercise price

$

0.40

$

0.40

Volatility

73

%

 

78

%

Risk-free interest rate

4.64

%

 

3.99

%

Warrant life (years)

1.16

 

1.41

Summary of the changes in the fair value of the warrant derivative liability

March 31, 

    

2023

    

2022

Beginning balance

$

5,508

$

28,317

Warrant exercise

Change in fair value of warrants derivative liability

(1,307)

60,664

Ending balance

$

4,201

$

88,981