Help me solve number 17 please

In year 1, a contractor agrees to build a building for for $2, 500,000 by the end of year 2. The builder's cost is estimated to be $1, 800,000. The actual costs year 1 are $900,000 and year 2's actual costs ae $1,000,000. Under the percentage of completion method year 2's gross profit is?. a $150,000. b. $500,000 c. $700,000 d. $350,000 An installment sale is best defined as a. Any disposition of property in which atlleast three payments are received b. Any disposition of property in which the instalment method is elected by the taxpayer c. Any disposition of property where atleast one payment is eceived after the close of the taxable year in which disposition occurs d. Any disposition of publicly traded property or inventory where atleast one payment is received after the close of the taxable year in which disposition occurs Mochache sold a piece of land on the installment basis for $100,000. His basis in the land was $70,000. Mochache received $40,000 down payment and a real estate installment sale contract calling for $60,000 in additional payments in future years. In addition Mochache paid $6,000 in commission on the sale. What is the gross profit to be recognized in the current year