Complete range D$20$:D$26$ by calculating the distance between each city and the next city in the list.

Place your calculation in cell D$20.$

Use the INDEX function.

Note that you will not calculate a distance in cell D$27$ since there is not a city below it on the list.

Reference the city distance lookup table $($range C$3$:O$15)$ in your formula.

The position of each city is included next to the name of that city in range B$20$:B$26$ and should be referenced in your formula.

Reuse your formula to complete the distance calculations in range D$20$:D$26.$