(multiplying .95 by itself 15 times yields 46.3 percent.)”
(multiplying .95 by itself 15 times yields 46.3 percent.)”
rate of return:72
the value of an investment is doubled if the return r {\displaystyle r} = +100%, that is, if r l o g {\displaystyle r_{\mathrm {log} }} = ln($200 / $100) = ln(2) = 69.3%.