How do you calculate present value of multiple cash flows?

To calculate the present value of multiple cash flows, you need to discount each cash flow back to the present using a specific discount rate. The formula is: ( PV = \sum \frac{CF_t}{(1 + r)^t} ), where ( CF_t ) is the cash flow at time ( t ), ( r ) is the discount rate, and ( t ) is the time period. You sum the present values of all individual cash flows to get the total present value. This approach helps determine the current worth of future cash flows.