You have an initial investment of 100000 and want to withdraw 700 dollars each month, without affecting your account balance. What percent monthly interest do you need to get?

Using the present value of a perpetuity formula

PV = Pmt / i

i = Pmt / PV = 700 / 100000 = 0.7% per month

At 0.7% per month you would earn 700 which when withdrawn would leave the balance at 100000

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You have an initial investment of 100000 and want to withdraw 700 dollars each month, without affecting your account balance. What percent monthly interest do you need to get?