On July $1,2027,$ Friedman Inc. invested $$720,000$ in a mine estimated to have $900,000$ tons of ore of uniform grade. During the last $6$ months of $2027,100,000$ tons of ore were mined.

$($a$1)$

Calculate depletion cost per unit. $($Round answer to $2$ decimal places, e$.$g$.0\mathrm{.}50.)$

Depletion cost per unit

On July $1,2027,$ Friedman Inc. invested $$720,000$ in a mine estimated to have $900,000$ tons of ore of uniform grade. During the last $6$ months of $2027,100,000$ tons of ore were mined.

$($a$1)$

Calculate depletion cost per unit. $($Round answer to $2$ decimal places, e$.$g$.0\mathrm{.}50.)$

Depletion cost per unit