Alexa is saving for retirement, she is 35 years old and wants to retire at 70. She estimates that she will need to have $1.2 million to retire comfortably. She currently deposits $550 a month into her account 401k, what APR does she need to earn?
We can use financial calculator for calculation of APR using below key strokes:
deposits are monthly. so, we need to convert no. of years in to months. no. of years are 70 - 35 = 35 and no. of months are 35*12 = 420 months.
N = no. of months = 420; PMT = monthly deposits = -$550; FV = future value = $1,200,000; PV = 0 > CPT = compute > I/Y = interest rate = 0.6496%
Interest rate we calculated above is monthly rate. To get APR we need to multiply monthly interest rate with 12.
APR = monthly interest rate*12 = 0.6496%*12 = 7.7952% or 7.8%
PMT should be entered as negative value otherwise calculator will show error.
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