If you invest 100 monthly payments of $300 and end up with $100,000, what was your return?

(The answer will be posted with the new calculator problem in 2 weeks. Or if you can’t wait that long, you can go to https://www.facebook.com/garyjohnstonseminars for the answer.)

Answer for 09/21/2015:

(N=100,PV=0,PMT= -400,FV=50,000) I=5.23%