The money-weighted rate of return (MWRR) is a measure of the performance of an investment. The MWRR is calculated by finding the rate of return that will set the present values (PV) of all cash flows equal to the value of the initial investment. The MWRR is equivalent to the internal rate of return (IRR). MWRR can be compared with the time-weighted return (TWR), which removes the effects of cash in- and outflows.