this is for my entrepreneurship project. we sell pre-loved items/clothes. the question is that i'm not sure how to do balance sheet and income statement. here are my roughly financial plan:

so what is the income statement and balance sheet?

Every restock cost RM80 plus with overhead (postage) which is RM10. (RM80+10=RM90) We do restock for 5 times. (The cost of restock for five times is RM905 =RM450) Also every restock, we get 20 pieces of clothing. (Where we sell it as, -buy 4 clothes for rm20 -buy 16 clothes for rm15) So, the sales for every stock we sell is, RM330. Total sales = RM1600 So the net profit = RM1150.