Financial information related to the sole proprietorship of Tina Pierce Interiors for March and April of the current year is as follows:
March31 April30
19-- 19--
Accounts Payable $430 $690
Accounts Receivable 2560 4100
Tina Pierce, Capital ? ?
Cash 4500 5400
Supplies 840 450
(a) Prepare balance sheets for Tina Pierce Interiors as of March31 and as of April30 of the current year.这里没有疑问，Total assets March31=7900, Total assets April30=9950.
(b) Determine the amount of net income for April, assuming that the owner had made no additional investments or withdrawals during the month.这题答案是2050，我做出来是：Net income＝Capital April30 - Capital March31= (9950-690)-(7900-430)=1790.
(c) Determine the amount of net income for April, assuming that the owner had made no additional investments and had withdrawn$2500 during the month. 这题答案是4550，我做出来是：Net income＝1790+2500=4290.
青帮我解释一下，如果表格看不清楚，可以看一下附件。

(b) Determine the amount of net income for April, assuming that the owner had made no additional investments or withdrawals during the month.
Net income＝Capital April30 - Capital March31= (9950-690)-(7900-430)=1790.
(c) Determine the amount of net income for April, assuming that the owner had made no additional investments and had withdrawn$2500 during the month.
Net income＝1790+2500=4290.
也就是同意你的做法。