Suppose that XTel currently is selling at $$40$ per share. You buy $500$ shares using $$15,000$ of your own money, borrowing the remainder of the purchase price from your broker. The rate on the margin loan is $8\%.$

Required:

a$.$ What is the percentage increase in the net worth of your brokerage account if the price of XTel immediately changes to $($i$)$ $$44$; $$40$; $($iii$)$ $$36?($Leave no cells blank $-$ be certain to enter $"0"$ wherever required. Negative values should be indicated by a minu sign. Round your answers to $2$ decimal places.$)$

$\backslash$table$[[($i$)$ Percentage gain,$13\mathrm{.}33,\%$