Jan $1$st beginning inventory $125$ cases @$23=2,875$ Feb $25$ purchase $100$ cases @$26=2,600$ june $15$ purchase $200$ cases @$28=5,600$ Oct. $15$ purchase $150$ cases @$28=4,200$ Dec. $15$ purchase $100$ cases @$30=3,000$ cost available for sale $675$ $$18,275$ Total sales $500$ cases Dec. $31$st Ending Inventory $175$ cases assume that the company sold all of june $15$ purchases and $100$ cases each from january $1$st beginning inventory, the oct. $15$ purchase. determine the cost of goods sold according to the periodic inventory method under each of the assumptions that follow. round to the nearest dollar and assume the periodic inventory system. $1)$ costs are assigned by the specific identification method $2)$ costs are assigned bty the average$-$ cost method $3)$ costs are assigned by FIFO method $4)$ costs are assigned by LIFO method $5)$ accounting connection. what conclusions can be drawn about the effect of each method on the income statement and the balance sheet of portia's parts shop?