Compute cost of goods sold and gross profit using the weighted-average inventory costing method. (Round weighted average cost per unit to the nearest cent and all other amounts to the nearest dollar.) Then, compute the gross profit.

Oct. 1 Beginning merchandise inventory 11 Purchase 23 Sale 26 Purchase 29 Sale 30 tires @ 52 each 10 tires @ S 64 each 20 tires @ $ 79 each 20 tires@ 75 each 22 tires @$ 79 each