This is an answer key for a depletion activity. The answers are correct, but I need an explanation on how to get the numbers for the 2019 sales journal entries. Please included calculations/formulas.

Slippery Silcone purchases farmland for Additional amount needed to be invested to make the property mineable The amount of sand estimated to be mined from the land is The number of years the mine is expected to provide sales for the company 5$9,600,000$1,200,0005,544,000Tons20years216,000 The residual value of the land at the end of the mining is expected to be Compute the depletion rate per ton. (round to penny) $0.68