document.write( "Question 1188488: Discuss the importance of the number of times interest is compounded annually when borrowing from the bank \n" ); document.write( "
Algebra.Com's Answer #819580 by Theo(13342)![]() ![]() You can put this solution on YOUR website! the growth factor per year is equal to (1 + r/c) ^ n * x\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "r is the nominal growth rate per year (not compounded). \n" ); document.write( "c is the number of compounding periods per year.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "as an example, assume the nominal growth rate per year is 24%.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "wen you compound only 1 time per year, the growth factor per year becomes (1 + .24/1) ^ (1*1) = 1.24.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "the effective interest rate per year = (1.24 - 1) * 100 = 24%.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "when you compound 4 times a year, the growth factor per year becomes (1 + .24/4) ^ (4 * 1) = 1.26247696.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "the effective interest rate per year becomes (1.26247696 - 1) * 100 = 26.247696%.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "when you compound 12 times a year, the growth factor per year becomes (1 + .24/12) ^ 12 = 1.268241795.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "the effective interest rate per year becomes (1.268241795 - 1) * 100 = 26.8241795%.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "the effective interest rate per year gets higher as the number of compounding periods per year gets higher.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "the effect of this becomes greater as the number of years of inveetment gets higher.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "example:\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "you invest 1000 at 24% interest rate per year.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "in 20 years, without compounding, your money is worth 1000 * (1 + .24) ^ 20 = 73,864.14979.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "in 20 years, with monthly compounding, your money is worth 1000 * (1 + .24/12) ^ (20 * 12) = 115,888.7352.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "let me know if you have any questions.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "theo\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |