Задачи Финансовая математика

Calculation of a loan (interest) for the purchase of raw materials, premises, equipment.
The cost of implementing the project is 1800 thousand rubles. Find the amounts of monthly and annual payments, as well as calculate the total amounts of payments and interest for a 7-year loan with an annual rate of 14 and an initial payment of 20 of the amount of project costs (the amount of free capital is 360 thousand rubles). Find the amount of the down payment when the “Total interest amount” on the loan decreases by 10.