The manager of Montys Pottery Company believes that the company will sell 940 place settings of pottery dinnerware next month. She expects to have 100 place settings in finished goods inventory at the beginning of the month and would like to have 300 place settings in ending inventory. Each place setting requires 3 kilograms of clay. The manager expects to have 840 kilograms of clay on hand at the beginning of the month, but she would like to decrease ending inventory to 580 kilograms. How many kilograms of material will need to be purchased to meet these requirements?

Material required to be purchased

kgs