Devise an app (use a GUI) to calculate and display loan repayments. The user will enter in a loan amount, term and interest rate. You calculate the periodic amount due and display it to the user. The formula you need is below. A=P{\frac {i(1+i)^{n}}{(1+i)^{n}-1}}={\frac {P\times i}{1-(1+i)^{{-n}}}}=P\left(i+{\frac {i}{(1+i)^{n}-1}} ight) where: A = periodic payment amount P = amount of principal i = periodic interest rate e.g. 7.5% per year / 12 months = 0.625% per period n = total number of payments e.g. 5 years * 12 months = 60 total periods