A company borrows money as needed on the first day of the month and repays principal and interest on the last day of the budget period, if cash is available. For the second quarter of the year, they borrowed $$5,000$ in April, $$7,000$ in May and $$4,000$ in June. The interest rate is $1\%$ per month. Assuming enough money is available on June $30$th to repay the debt, the total amount of interest due is $