Answer:
Estimated variable cost per unit is $2.20
Explanation:
high low method separates the fixed cost and variable cost using net of Highest activity level and Lowest activity level and net of their relevant costs.
According to High low method
Variable cost per unit = ( Highest activity cost - Lowest activity cost ) / ( Highest Activity - Lowest activity )
Variable cost per unit = ( $39,390 - $26,410 ) / ( 15,900 - 10,000 )
Variable cost per unit = $12,980 / 5,900
Variable cost per unit = $2.2