Everyone’s time is worth money–you just have to calculate how much. For business purposes, it’s helpful to know your and your employees’ hourly values to help you make well-informed decisions.

Calculating the true value of your time is actually much harder than it sounds and far more powerful than it seems. The value of your time will likely change every year, perhaps even faster.

Time-weighted return (TWR) calculates an investment portfolio or fund’s performance while accounting for external cash flows. Investment funds usually have money flowing in or out at various ...