Pronghorn ltd uses a perpetual inventory system $,$ recorded the following inventory transactions for this year: apr $1$ beggining inventory $100$ units $17$$ unit cost apr $25$th purchase $310$ units unit cost $19$$ may $4$th purchase $140$ units unit cost $21$ may $16$th sale $250$ units unit price $33$$ june $4$th purchase $110$ units unit cost $25$$ $.$ Using the FIFO cost formula calculate the cost of goods sold for the quarter ended june $30$