PT Cipta Sarana on January 12019 started work on a monument construction contract for the Sumawis Gity Government for IDR 4,500,000,000. Construction of the monument is estimated to cost IDR 4,000,000,000 and will take 3 years to complete. The following is data relating to this development (in thousands of Rupiah): a. Calculate the percentage of completion and gross profit that should be recognized each vear during construction period. b. Make all the necessary journals for 2018 to 2020 c. Present information related to the construction contract in the position report final financial vear 2018-2020 d. Present information related to construction contracts in the income statement for each period from 2018-2020. e. If something like the following occurs during the work, calculate the gross profit recognized for each end of the year